At the very least. I mean the Soviet Union didn't even manage Stealth technology and the ratio of military spending to GDP they had probably is better than the A4's one.
Personally I think the A4 would be stuck at an 80s tech level in 2017. Europe is toast and China is a giant hermit kingdom. India taking China's role doesn't really make sense in that context because the factors that allowed China's rise are very much absent.
Kinetic weapons on the moon?!?! Please, the A4 would simply have a shit ton of missiles with conventional, chemical and nuclear warheads. Contrary to armchair historian logic a cancerous MIC tends to produce very conservative results. Why would Boeing-Lockhead-Raytheon be interested in building kinetic space weapons (apart from lacking the necessary technological base)? Just build 1.500 Tomahawk missiles.