I think I would get it apart and the go to ordering stuff .
BTW , can you post a pic of the head . Pete , or anyone else , are these cylinder heads prone to doing this ?
The pivot pin I have measures 17mm loose on the pivot . 20mm on the threaded portion and the hex nut is 30mm on the nut size . I used wrench openings to measure the sizes . My hillbilly micrometers . The long bolts I hid from myself .
I have some spare stuff . Give me some dimensions . There are two different sizes of the swingarm pivots and I need a dia. & length of the trans mount bolt.
I have been sorting metric/standard bolts/nuts/washers for about 6 weeks (to keep my sanity also) now and I am still sorting things out. I have tried keeping all the MG stuff together just wanting to keep them together. Those bolt thread sort tools have been a savior !
FWIW , remove the spark plug and inspect it .
it is probably damaged from the crash. Also, check the spark plug cap . Remove the (unscrew) cap from the wire and check the resistance ( I think it should be 5k) , and look for a tear in the boot.