it doesn't need two different tiresizes - only the original-rims need them...
as i wrote
here you should look after rims with an offset about 48/50mm and holes in 5x112 and you can drive them with adapterplates.
there are some chromewheels with this data and you got something that not everybody has... ;)
the only alternative with three holes is the lorinser speedy with chromefinish - but as i've seen the "normal" speedy's are even very expensive in america - how much would the chromed-ones be then?