Hey mate would have to agree with the 304. The k frame suspension and all that will bolt straight up into the vk, just need to rewire for the say vn 304 computer and what not. Iv seen engine, box and loom go for about a grand, but if its carby youll need a donor car as youd need the tank and senders. Also said youd need, for the mod plate, to update all the brakes to the year of the engine and youll be set. More info on keeping it legal and mod platable can be found on this forum somewhere, i was lookin at it the other day but cant find it now.