Does anyone know who's manufacturing K03/K03s based hybrid turbos or maybe its better way to go k04 based setup. With K04 i think it can be around stock connecting rods limits , i dont know about prices of certain mods . First thing is to find a good place to do such things without being worried about experience of garages personnel. Can anyone recommend good garage around Derbyshire area ? I've found on internet that R-Tech is good in mapping but it looks like that they're not doing anything mechanical. Cheers.

Not in Derbyshire but you'll find these are very good for Hybrids with Warranty:-https://www.facebook.com/frankenturbo/

Umbrella Performance Engines - builds with supporting Engine Mods:- They're in Plymouth, but will ship both ways. He has a new workshop. Ask him about Hybrid Turbos too!

The site has pricing guides for different Specs and Budgets.

https://www.facebook.com/umbrellaengines/