I crashed a 100cc Yak last summer breaking off the firewall as shown in the pictures. Other that a repairable ding in a wing, the rest of the parts including the cowl were undamaged. I'm looking for some advice on the separating the epoxy joints in the firewall. I want to remove the two side frames going from the front of the engine box to the rear of the wings so they can be repaired or remade. The mfg used a lot of hot melt which is pretty easy to undo using rubbing alcohol, but the epoxy joints are tough. Any suggestions?

Chuck