RE: reactor and remote start????
You sure could inspect it, but unless it was a severe crash you should be fine. The auto-start idea is great because you need no glow ignitor and don't have to pull a pull start or carry any electric starter.
I don't believe there will be a drop in unit for the avalanche and typhoon, just because the design and the battery powering it. But you might be able to find a way to either add one or take the engine from the reactor possibly making an auto-start.