larr991 Well that's a tricky situation for you,Another danger with antifreeze in your oil is it will ruin your cam and bearings. Maybe do an oil change with ZDDP or use 15/40 (has ZDDP )then watch it,your in a cold climate with more chance for condensed water. Look at your plugs for clues,If you don,t have a miss head gasket may be OK. If your side cover bolts are not real tight you might be able to just leave that side gasket in place and re-use it. same on that oil line,best to prime it but everything is oily so would't have to. Have to deal with your spark plug cork gaskets if they fall out, GOOD LUCK !!!