MK1 (1981) Electrical Expert wanted - for hire.

Please see my topic on the fuse board. Scratching my head and time to bring in an expert. You can see the bypass relay (I believe) at the rear of the engine the right. It has MAS written on it (see my other post).

The car is a US Import 1981 MK1 Golf GTi (german factory made). It has factory Air con (I want to get this going - but will know more once I get it started) it is 100% original and untouched in any way shape or form (except an aftermarket radio). I will need to get a cambelt done and the side lights converted from running lights to indicators for the UK MOT. There is no service history with the car other than it is a documented 2 owner car. £78k on the clock and all looks genuine. Oh yes - it's a 3 speed automatic! Sadly, unlike my (2018 GTi)  it has no launch control! Any mobile expert (I have a large secure garage with power and lights) in West Sussex please contact me. Thank you