1st post on here and a new bongo owner

I’m currently stuck between a roof and a hard place

Got the roof wedged open from the outside rear to remove the motors as they were seized, got them working again and now on to the replacement, the problem is, the roof had jutted forward 10-15mm so that the bolts for the rear hinge bracket were now out of place.
As the force of the strut is wanting to push the roof forward, how would you suggest I get the roof back in place so that I can attach the bolts and secure the hinge in place.
Any thoughts would be greatly appreciated
Cheers,
Mark