I've never really liked conversions.
Here in AU we have been dealing with yank tanks being converted from LHD to RHD, apart from a instant loss of worth for classic cars, cars that are predominantly designed for LHD don't alway convert to RHD well, and visa vesa.
I would just roll it RHD, and yes if I ever wanted a yank tank I would keep it LHD.
Disclaimer: we now have Mustangs here in RHD, but, they are factory conversions, not, hammer/saw and welder conversions.
There is a Polish guy on Skylines Australia Forum that has converted a R33 GTR >
https://www.sau.com.au/forums/topic/...-r33-gt-r-lhd/