I went directly to the Verner Engines web site and did not see any prices. But I did finally see them on ScaleBirds.com. IIRC, they start at about $7000 for the 3 cylinder? The LB/HP looks inviting, though.They are published on our site. Whether it's affordable, I can't judge that, but it's not the cheapest $-per-HP for sure. But I dare say it's not a bad deal for what you get.