You can't use a LHD rack in a RHD car. Sorry, they're not interchangeable.
You can source used racks from UK, Australia and South Africa. We got our last set from a 2.0TS in England. Lots of breakers there. Also, you can sometimes find them on
www.ebay.co.uk. Look for 'alfa 75' and it'll bring up all sorts of RHD goodies for your 2.0TS.