Most here don't do spin bikes and i am guessing that is what that list is. i cannot offer help there, but, now that winter is ending you might consider a used smart trainer and a used bike to put on it. Craig's list might have something. you will like the experience much better (IMO) because the resistance will change automatically for you and you can later play around with zwift and do virtual rides with hills, flats, and other riders.

i think you can get a wheel on smart trainer and a bike for your budget. look at the Tacx on this link:

https://zwiftinsider.com/top-rated-w...mart-trainers/

if you do decide to go this route just make sure any trainer you pick will work with a bike you already have or will buy. again, you can buy a used bike. and the bike only needs to work from a stationary standpoint. meaning a bit of rust, dent, scraped up, brakes not working, etc would be ok. but it should fit you.