2011 ???? ……I wonder why they are righting it off ???? and not fixing it ……. as Nige said no ROPS so the cab will take a big hit.
The stick cyl is probably OK, just a new ram needed ….. the pics are hard to give an accurate opinion, but from what I see, it's not one of those big structural issues …. I somersaulted my 312 backwards on a down-hill slope (quite a few yrs ago) … it was winter, ground frozen covered by snow …… BUT I have ROPS/FOPS cab guarding ….. we Slammed hard upside down and the worst thing was the stick ram was bent bad, looked almost the same as the 320 you show, appears that the boom and stick were straight up and when it went over the contact point was the RAM, which will kinda absorb most of the impact ….. it prob rolled on its side crushing the Cab …..
Looks more like Pirates went thru the cab and took most of the stuff out (by appearance only) …… if they say it runs when was it run ??? …. cause with all the stuff missing in the cab I doubt there's enough to start it now ????? ……. as in my case, my engine was shut off immediately, but because it laid on its side over night the engine hydraulic'd ….. when we barred the engine over I must of bent a push tube partially, I held the exhaust valve open manually, barred it over and pushed the crank-case oil out of the cyl ….. put in a new push tube and it fired right up …….
Even re-ramming the stick cly was not cheap, but WAY cheaper than a complete cylinder …….. I still don't get it ????…. that's a 2011 and was it not insured ??? …. up here cabs would be a dime -a- dozen with all of the converted machines into Forestry Cab Conversions …..
Let us know if you wind up with it ….. cheers