Right, I forgot about CFD....which I really don't like for a whole bunch of reasons, "cutting of an entire chain of augmentations" being the mildest really. Although that's bad enough on it's own, why do we need to nerf 'Ware? Oh and let's ignore the obvious solution of magical suspended animation to starve the nanites. Oh wait no we removed the spells for that in 5E! Never mind that spirit possession can still totally do it, so go grab some possession-tradition shamans, bind some spirits and have them ride the host for a month or two while they're locked in a hospital.
Oh and of course, technically all the nanites presented in Chrome Flesh are not freely programmable anymore, so they shouldn't even be affected by CFD anyway, and they come with a kill-switch too boot!
Oh, and if that actually convinces you to do it anyway - well, try to convince our dear GM to allow an ejector connected to the nanohive, and extrude Smart Corrosives from it. You could get two applications per week out of that, together with some storage. Was one of my favorite concepts back in 4E.
Well, there IS Control Rig Optimization Genetech - +1 to tests affected by a Control Rig. Just 0.1 Essence and 4.600€. In that case, no need for the cyberarm.
As for the attributes:
I agree, 1 in any attribute is bad.
Which is why I allocated Karma to buy up both Strength and Charisma to 2. Yes, it's min-maxing - but it entirely avoids the pitfall of utter incompetence in one area.
Speaking of which, the character still needs sneaking and Etiquette. Well, there's Karma left for that - 12 for 2 in both should do.