Recently there was a Lancair 4 Turbine for sale at $250,000; it sold

and now is back for on the market at $299,000

http://www.globalair.com/aircraft_for_sale/Experimental_Kit_Aircraft/Lancair/PropJet__4_for_sale_68010.html

the biggest shortcoming is that it has only 125 gallons of fuel.  figure 50 gallons the first hour and 35 gallons the second hour. that leaves you just over an hour fuel if you land at the two hour point.
you say an hour fuel is excessive to land with, supposing that brings you to 10,000 feet, then your "cruise" hour of fuel is only 40 minutes.

but, hey you can climb at 4,000 feet a minute.

peter