That’s how I initially thought, but things progressed and then it got to the point of no return! Life is too short! Go for it!
The good thing is, 2nd hand turbo parts hold their value, so you could do it, then when you wanted to sell, strip it down and return it to NA spec to sell, and sell the used turbo parts! The mx5 is fun with 130bhp, but just too slow! Now imagine it with nearly twice the power! Then its fun!