I probably wouldn't get very far. I've seen flight manuals for sale, but I'm sure they're US only. Same goes for most of these things including A10a I think.
It carries enough to be fun I think. The later ones can carry a fair bit. Add to that RADAR on the later versions along with the VTOL. You'd have things like how much water you have onboard for engine cooling in the hover (as far as I remember). I'd like it anyway :D
Another one would be the Panavia Tornado. It carries tons, supersonic and old, but yet again finding all Avionics info would require string pulling. People voting for aircraft like the F22, F35, Eurofighter etc would have to understand, no matter how good the flight sim is represented, it can't be very authentic due to the fact most of what it does and how it operates is classified.