r129 electrical problems after storage

[pcstrachan]

Morning all. I have a 1991 r129 sl500. It had been in storage for a few weeks and when I collected it the battery was flat. I used a jump pack to try to start it to no avail. I realise now that was a mistake. I then took the battery out to charge and then refit. The first problem I noticed is that the windows only open with the doors open. Then I had no indicators and now no power to the roof, mirrors, roll bar or seats. I guess I must have blown something vital. I have replaced the N10 relay and checked all the fuses but no success.
Can anyone help please.
Many thanks
Peter, Guernsey