a rover v8 powered TA23 showed up at our cruise last weekend, was a mint conversion, nice fit in the engine bay (same as the RA28's except crossmember in case anybody doesn't know), but he had converted to rack and pinion and it didn't look like you could get pitman arm steering in there. this would be the main problem IMO, its doable but not really easy. there's a good thread about the R&P conversion in an RA28 somewhere.........