Yep, got a couple of Wren engines, A MicroTurbo drone engine, Williams WR27, WR24, Rolls royce nimbus, They're actually my retirement fund, getting rarer by the year hehe!
I've been there and done it with the push bike, the most scary thing i've ever done. I came off at 140mph using my Marin mountain bike with the WR24, had 12 fractures in my pelvis, broken collar bone, broken wrist, 2 fingers, road rash and only a mild concussion!!!
The engine was designed to push a 500kg drone to around 470mph so imagine the power to weigh ratio!
I've also tried it with my little Wren, 18 lbs max thrust, you'll get a cosey speed of about 70mph with a tail wind
Last but not least, I'm a part time wedding photographer so you'll get good pics once I get it all out on the driveway