Does anybody on here own their own pneumatic air mole? I'm looking at possibly purchasing one this season and then subbing out to other sprinkler companies that need to cross sidewalks and driveways. There seems to be a big need for driveway bores as nobody thinks about installing sleeves before the driveways are poured. It always becomes an after thought for most people and I see an opportunity to capitolize on their failure to think ahead. I already have the compressor just need the mole. Anyways, for those that own a air mole what brand do you recommend and what is the average price? I'm looking at purchasing the 2" mole, possibly the Hammerhead Mole.