Looks like you only need a conrod in that picture. I would give the crank and case a serious once over as well, they could be damaged or scored. When I lost a conrod bottom bushing in the same way in a K&B 45, I also lost the case as it punched a hole right through the bottom.
Ouch I know how that goes man been there done that....that kind of looked like my vac did when she went but the crazy thing about mine is it snap piston pin I. Two and broke the boss the piston pin goes it to.....i think we all been there...i got lucky didn't punch a whole in side of mine or bottom
Had a recent failure similar to that but it also broke the wrist pin boss out of the piston and broke the rod.. total loss. Ran really good for 3ft though
This is a great motor....still have mine running strong in a SG rigger....glad I also have a spare ABC for it but what upset me is the lack of a spare cranckshaft.Gill