That's great news! I love Japanese cars
MX-5 was inspired by the classic British roadsters, and is a faithful modern tribute to them, their direct descendant.
However, pragmatically, I'd be more enthusiastic about a BMW donor. MX-5's are quite rare around here. On one used car ads board there are 37 Sierras and 5 MX-5's, the cheapest one having the asking price of 3500 quid, and over a thousand E36 Bimmers.