I am not bothered. This baby runs like devil, but in certain situation there is just a little missing to make it perfect. So with turbo it will be super-ok Ka-r.

Any luck with conversion kit sale?
I got my turbo at home, I like it, even it's chinese. I bet it can go at least 50k km. We just figured how to add 5th injector (with switch) for Performance modes, so never running too lean on turbo. Otherwise it's not so needed.
We also tought about using non-linear 5th injector setup on wire plus guided by pressure sensor on compressor side of turbo, so it will add more fuel just close to WOT and with serious boost, which should also work Ok-ish for 70-90 bhp. It can be tuned with AFR sensor so we will have nice compromise setup, not worse then runing way more expensive MS2 upgrades. If 20 bhp is all I want, and that is. For street fun it's enough, I found on street. We have narrow streets and narrow hill roads around, in CZ. Gokart handling is much more value then any power, as I found racing big X5s or A4s up there. Even 450 bhp 2010 subaru got beated due size and handling on my favourite up/down hill runs. power doesn't matter. But size and grip does.

There is no need for MS2 or similar solution, and I can still keep my cat and lambdas where they are. Fuel can be added close to the vents, to use well negative pressure and so we can skip fuel pressure adjustments.