If they had all 8 cars on the track at once, there would be stacking... Maverick esque most likely...
Fury can have about 10 cars on the track at any one time, but you need remember that loading times never take the same amount of time every time, so it could (and most likely would) end up in cars being stuck on the MCBRs, even Vampire stacks when it has three trains due to varying reasons of slow guests, large guests, idiotic guests, and some other issues that can occur...
Hence the ride may be able to have 8 cars, but it'll most likely have 5 or 6 on at any one time...
Thorpe will just look too packed now, the footprint of the park is just too small atm to be considered being better... Since Thorpe is often full of chavs, I'd like to go somewhere quiet and get away from it, this was why I liked the Farm, you could go over there and sit down by the pond for a hour or so just chilling... With it shut, there's nowhere really to just sit and relax in a quiet area, which can often help a stressful day get less stressful...