Its a HUGE job Blue ,, I was involved in just such a conversion some years ago , when the car in question was still worth plenty . It still cost over $8000 . So much to replace .
And all to make the LHD car saleable here as a RHD car .
Cheaper and easier to find a RHD version if that is what you really want .
I agree with Matt's opinion on this .
'40 Chev pickup , the shop hack.
'73 Monte Carlo Landau, for "Super Chevy Sunday"