Other folks will surely disagree with this, but it's based on experience in three states. I'll double down on what Wes hinted at.
DO NOT BUILD A HANGAR!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Don't even say the WORD hangar.
You want an equipment shed. That's all. An equipment shed. Like folks keep their boat trailers and combines and tractors and garden machinery in. An equipment shed. They don't usually require hard surface floors and fire sprinkler systems and eyewash stations and air conditioning and multiple routes for personnel emergency egress with multicolored lighted signs and floor mounted battery backup strobe-marked walkways and minimum electrical service regulations and wastewater pollution prevention and reclamation systems and you get the idea, right?
AN EQUIPMENT SHED.
And for darn sure don't pave the "ramp" and "taxiway" and "tarmac" or you'll need a complete catch basin water runoff mitigation system. Plus pay higher taxes on the improvement.
Your mileage may vary.