I have not seen a flying B-2 model anywhere, but don't be surprised if someone is working on one. Years ago, I saw pictures of a beautiful XB-35 flying wing model. In many ways, that was a more complex model than a B-2 jet.

I also thought of using that B-52 to launch different models like the X-15, HL-10, etc. It'd be very impressive. To be historically accurate, the B-52 would need to be a B model instead of the G, but that's just a nit.

That B-52 model probably cost as much as some homebuilt planes. I couldn't tell for sure how many jet engines it has (4 or 8), but they cost several thousand dollars each. It wasn't using ducted fans but instead mini-turbojets, probably from AMT Advanced Micro Turbines. The B-52 wasn't featured on their gallery page, but some very impressive models are there.