Hi, I'm a beginner on a tight budget. I'm wanting to cycle whilst seeing virtual reality images of different parts of the world eg with Fulgaz. I have an old, heavy ex-hire bike I've wondered fitting a cheap turbo trainer to, or a cheap exercise bike eg Ultrasport F. What is easy to fix up & best? Not sure hire bike will fit to a turbo trainer easily? I'm happy to sweat buckets btw, but have a fan though. Thanks