New to forum so please be easy on me.   I'am in central ohio and looking for someone to sell me 3 FHP aquarius units.  My brother and I are doing a diy geo install on our houses.  I know this not a very popular idea but I knowit can be done.  WE have the equipment and land for closed loop, have our manal J numbers and pipe, just looking for the units.  I need a 3ton 4 ton and 5 ton.  I pay cash and will be willing to drive to any of the surronding states to pick them up.  Thanks  U can email me at krazwag@yahoo.com

Most brands will take away your dealership for OTC sales. Don't know if that's true of FHP or not. More accessible to you might be Bard (in central OH) or Comfortaire (close to me in MI). Neither of these have protected dealerships and are available to anyone with a heating license (and sometimes without).
Bard is it's own product; they just came out with their 2 stage equipment while Comfortaire is a re-labled Climate master with few changes (so their 2 stage is like a Tranquility 27).
So the equipment is easy.....The better function of this forum for you would be to discuss design.
For instance what % of the load did you design for? If you don't know what that means, give us the actual btu loss for the homes and we will discuss your selected sizes. Most common mistake is too much equipment.
Good Luck,
Joe