Joy of joys. Well al least its sunny.

Having suspension fun today. Was going to replace the old, with shiny shiny new Boge kit. The rears went on nice, but no so with the front.
1. Any solutions as to how remove the slotted nut of front top mounts?
2. Where can I buy new ones, GSF, Dealer only?
3. Where can I buy new spring plates and rubber coil top mould thingy?
Thanks
Jonathan.