This is my first post in this forum

I have an R65 from 1981, which I had for 1.5 year now. It's really great, but the issue is that it's not comfortable to bring my girlfriend as a passenger. The biggest issue is that our feet are too close together, so either I have to bring my feet forward against the break/gear shifter or she has to move her feet backwards, which makes them lean on the exhaust pipe.
Did anyone have the same issue? Is there a kit to move the footpegs or any ideas on how to customize them? And potentially lift the seat as well.
Btw, I'm in Denmark, so it's a European bike.