Murphy Moose. But the IO540 will not fit the fuel burn requirement. And to complete it might be a little north of your limit.
SR3500 (MOOSE) COMPLETE KIT FIREWALL BACK
$49,500.00
The kit contains all the components you will need to build your MOOSE from the firewall back and from the ground up. Standard features include spring gear, 36"cargo door, dual fuel tanks 60 US gallon total capacity, dual controls, wheels & brakes, electric elevator trim. tires & tubes, formed windshield, boarding step, aluminum stabilizer fairing, front bucket and rear bench seats. The kit does not include the engine, instruments, fiberglass stabilizer fairing, upholstery or chemicals. Options for 80 GAL and 100 GAL tanks are available.
http://www.murphyair.com/detail/moose
OR, the Yukon with an IO360.
YUKON COMPLETE KIT FIREWALL BACK TAILDRAGGER
$45,250.00
The kit contains all the components you will need to build your YUKON from the firewall back and from the ground up. Standard features include spring gear, 36"cargo door, dual fuel tanks 60 US gallon total capacity, dual controls, wheels & brakes, electric elevator trim. tires & tubes, formed windshield, boarding step, aluminum stabilizer fairing, front bucket and rear bench seats. The kit does not include the engine, instruments, fiberglass stabilizer fairing, upholstery or chemicals. Optional 80 GAL tanks available
http://www.murphyair.com/detail/yukon