Pilot DAR
Again in the UK things are different. We have EASA and part M and CAMOS. Then you have the non certified parts (OK on LAA) which are identical to certified ones which cost many times the price. The Inspector system is also set up to help and teach. Against this European H & S has stopped non employees entering maintenance arrears and doing your own work on a C of A aircraft can be very difficult. In some arrears it is common, normally when the local engineer encourages it (Derby in the UK for example), but it is not common in the UK.
I built my machine, so I understand it, but I would have another learning curve if I were to step outside the carbon fiber / Rotax / LAA world.
Rod1