Stuck at it mate, getting a few quotes of my own together now. They have approved the original quote that I had nothing to do with which came to just under 12k inclusive so I have some room to play with.

Was informed by a good source to steer clear of the workshop involved in original quote for RAC.

Have also informed all parties to hold off on any action at the moment until I am 100% satisfied with the direction the repairs go in.