New Garage / Winter Home

I'm hoping it will be big enough that I won't have to build any more for a while. We want to build a house next year and sell the one that we have now, if we do I will need a three or four stall on the house because I have eight car storage at the house that i have now and I will be losing it.
The neighbors well is 18 feet deep and they drove it 28 years ago, they have never run out of water and don't even need a conditioner, the water is great. It cost me about $130.00 and a few hours to put the well in and I will be using the pump and tank from the existing well.