Assuming its based off of the attunement, then the maximum reagents required are 5 arcane crystals, 2 nexus crystals and a righteous orb per person.
Not necessarily those exact items but yes, it's costly
And to clarify @FractiousDay when you say that it won't be your primary purpose, are we to take from this that the expectation is this isn't to be the primary time to investigate what happened here?
So you'd be there for the syndicate. If there was some orcs off down a mountain valley or something then you wouldn't be able to just wander off and go visit them, because you'd be in alterac for a specific task. YOu can go back to alterac after you've considered your mission to loradaeron completed though, so after Naxx etc.
mmm there is an argument that we can go from Arathi up to Alterac, since the syndicate is a major problem in both, while the ogres are only in one.
The Arathi one is more the east of the area, rather than the syndicate activity in teh west. You could tackle them yes, but you'd mainly be on the orcs and ogres
Otherwise the orcs there seem to be ones who became majorly depressed by the death of Doomhammer at the internment camp in the area.
Yes, but there'll also be some random 2nd War holdouts about
The Amani under Zul'jin probably ain't interested in talking to an orc. Not the elves either for that matter.
They're not massively opposed, not yet anyway. THe Trolls broke up with the horde fairly acrimoniously, but the Blood Elves aren't in the Horde yet. They'd welcome you as guests, but they perhaps wouldn't be very happy with you. As you say though, the interactions with the ongoing conflict between thetrolls and elves will indeed be difficult to handle.
Specifically, checking the wiki, The Horde can't get through the elf shield, so they leave, but the trolls want to fight on, then Guldan says he'll stay behind and help the trolls, and then just leaves lol. This might be able to be one thing which you can just blame on guldan again.
But yes, the Amani wouldn't be that hostile.
@FractiousDay nother question, Darion and co be tagging along where we go as the official Scarlet Crusade representatives or are Redpath and co going back to the rest of the crusade?
Darion will be, the others will depend. Once you decide somewhere to go you can requisition appropriate supplies. For example you don't need cavalry in the woods of Silverpine, but you would need them ont he highlands of Arathi. The Defenders of Darrowshire would probably be better used in other places in the Crusade rather than working for you, but if you specifically wanted them you could probably have htem
Maybe another place to fulfill the goals of the Scarlets is either checking out the ruins of Dalaran that Archimonde smashed or go on official capacity to Theramore since that's where much of the Kirin Tor went to with Jaina Proudmoore?
'Checking out Dalaran' doesn't really do much to advance the war effrot, and you can't go to Theramore beacuse again that's not really helping, the Crusade has other people who can do that.
the other loction if I am not wrong is the one with the frostwolves and I feel our char would know that and don't think they will like us or us them
And no the only orcs who should still be in alterac are remnants of the black rock. They won't like us either, but for different reasons.
There'll be various groups
Organised groups, minor clans, or parts of clans, eg warrsong, frostwolf, blackrock remnants
Unorganised groups, just random holdouts or bits of tribes which retreated during the 2nd war, eg a single village who are just chilling rather than a distinct formation
Random individuals or family units
Any of these would accept you with honour, because you're a blademaster and a highly ranked orc. The Frostwolves would probably be hte least friendly, but they'd still be willing to let you in and talk to you etc. Drek'thar after all was a warlock, he can hardly be prejudiced agianst them given he begged Guldan for hte Fel etc. There's a potentially really interesting scene between grok and drekthar actually, so we'll see if you eventually meet them.
But yes, they're not WoW mobs, they're not going to be automatically hostile for some reason.
Voting open, but not in a rush to close it etc so take your time and consider variosu things