How much damage did this do ?

2003 Exmark Lazer Z 23 Kohler Command w/~600 hrs cutting and smell burning then see lotsa smoke shut it down fast. Oil everywhere rear main seal just popped out. I hope I will be OK with new seal I still see a bit on the dipstick. Is this common I can't find where it is ?? Any tips appreciated. Looks like rear cage guard and clutch will have to come off to set a new one. The old one is still intact put I think I better go new rather than try to pop it back in.


Thanks,
XB 2002