I don’t know about budget here, but exercise bikes of many quality levels end up at local thrift shops all the time. I would bet that if one were to stop by a couple goodwill stores, that they could find something pretty good for not much money.
Maybe money isn’t a concern. I think for this item my first instinct would be to find a quality item on the used market. Thrift shop, CL, facebook marketplace, would be looked at before dropping a bunch of money.