Cheers for all the replies - some more helpful than others PMSL

It confrims what i thought, mine is a mk3.5 - but was wondering last night, can i not buy suspension/brake kits for the rs1800 and they will fit? If not are RST hubs a straight swap or do they require any machining?

Im surprised about the recaros not fitting, what would be involved? Drilling new holes in the floor plan for the new subframes?