On another thread, when someone said they were thinking of doing the swap to their LHD car, I asked if the costs to do it might not mean you'd be better off buying a RHD one in the first place ... I think from the parts needed and the labour costs (if you can't do it yourself) would run to a pretty penny ...
Having driven LHD cars many times and owned a few over the years, I can't see what the problem is really, unless you MUST have a RHD car for some reason - exclusivity, just want a UK car etc.
And buying a fecked RHD donor car - christ - even the rubbish ones (if you can find one) go for ££££££ now ... I'd buy a driver RHD car and improve it before I'd attempt this job.