A guy close to me is selling a 3 year old craftsman garden tractor with a blown engine. I believe it has an 18 hp briggs and straton motor. He says it seized up on him while mowing. How hard would it be to rebuild or get running again? It does not look like it has any holes in the case or anything that bad, so I'm thinking he ran it low on oil and seized the piston. I found an overhaul kit for $160, so if i can get it for about $100 i could have a decent mower for about $300 when its all said and done(and I need one for this season as the house im in has about 1/2 acre lot and it gets old trying to borrow/carry one around all the time). Comments/tips/suggestions welcome. I'm torn because i have found two other smaller ones that are running, but would only be good for cutting the grass, whereas the bigger one could do more around the yard.