It is an honest progresion in post though, from "can anyone make" ... to "will anyone make".
Perhaps if you first explained why you want such unusual models you might get a more receptive response as they are pretty different and therefore may not be high on most designers priority list. Of course mabey its just me, because I still have trouble understanding why anyone would want an
RC sim to have first person cockpit cameras and multiplayer gun battles, yet here we are, G5 pilots across the globe are gleefully tearing up the sky streaming bullets at each other with RC Tx in hand instead of a joystick in a combat sim.
So for all I know someone could be hashing out a guppy as we speak.
Way back in the days of flat box poly visual models and wireframe scenery (dating myself) I wanted a more realistic Cessna, so I taught myself how to hex edit MSFS and made a terrible mess of it. Low and behold one of the original designers took pitty on my shoddy work and polished up my code into exactly what I was trying to do. I learned more than I ever feel I could repay from his picking apart my efforts, fixing it and telling me where I went wrong then I could ever repay.
And now decades later I'm still always learning but can bash out a model in no time flat and I get exactly what I at least want every time.
The point is, as jeffpn said, perhaps if you put the effort in to kickstart the project, even if you make a terrible mess of it someone will be inspired to either help you out and you could learn a ton and enjoy the fruits of your labor.. or at least take pity and see it built out to the conclusion for you. Either way you win and it can be vastly rewarding.