Well, definitely good luck with your approach as well!

I guess the biggest hurdle will be stable operation, without having to replace too many broken parts too often?

Tokamak requires regular shutdown as far as I understood and that is quite a lot of heat stress for all the parts I believe, along with the radiation etc.

(But I lack the background to really debate on the pro vs cons of tokamak vs stellarator, I just have opinions here)