I'd love a Tamiya vintage buggy but I'd like to make it durable and modern with high quality parts. I know M.I.P. make some diffs for the Bigwig and others, and I've always wanted a Bigwig, but there's not much point spending $150 dollars on the M.I.P. diffs if the rest of the car is cheap toy grade plastic. TT01 and other road cars have so many upgrades, but I hardly see any for the buggies.
Cheers.