I have finally found a use for my old Gravely promaster 30H outfront,I am going to build something I can actually get some use out of. I recently found a VERY cheap source for hydraulic parts(surpluscenter.com) and I decided to build either a VERY large walkbehind with a 30hp diesel and 72" deck,also with 23" tires!(walkbehinds are more versatile than a rider in my opinion).Or a sort of cross between a tractor and an ATV,again using the 30hp diesel, and 4 wheel motors,(4WD), and a PTO, all to be mounted on a heavily modified Big bear ATV frame. I figure I could use this for a number of things plus have a little fun with it! Most of the parts are coming from the outfront Gravely. The hydraulic pump I am going to use will allow it to reach 40mph. top speed! Anyone ever tried anything like this? I have a friend who is an expert on hydraulics helping me, and I am a pretty good fabricator and welder so it should turn out pretty cool!. Suggestions and comments are welcome.