Had a chance to have a good look around the engine and box today and run a tape over it and compare to my chassis. The front corners of the valve covers will poke 20-30mm out side of the chassis so no major problem and they also fit between the top and bottom rails with not a huge amount of sump hanging below the chassis. It's got the whole wiring loom with it so should be plug and play more or less (fingers crossed).
The exhaust manifold(s) could be interesting though, I thought about bringing them towards br7, joining them together and chosing a side to exit them on. Another option is to have one either side and have it sound like a V twin
