I decided to put the board into a separate project, since it could be used in other let's put a RasPi into a dead C64 case as well.

so here it is:  https://hackaday.io/project/164852/gallery#5f86694c56828d3a6d7506c779ae010a

and I ordered the first batch, trying jlcpcb once, because 17 bucks for 5 PCB, which should be here in around a week.

The PCB in it's full glory, finger's crossed it works.