Sunny Health & Fitness Multi-Function Roman Chair with Dip Station & Sit-Up Bench, Adjustable Heavy-Duty Strength Training Equipment for Glutes, Core & Lower Body Workouts, Hyperextension Machine for Home Gym

Sunny Health - https://a.co/d/03BwfHB2 Collapses and durable, but not super heavy duty. Also check out the RitFit BE01, Freak Athlete Hyper Pro, Shogun NordEx, Nordstick Nordbench Pro, and Baseblocks nordic bench, which all have 45 degree hyper/roman chair functionality.

Hyper pro is too big for your plan, IMO. I'd get the sunny health foldable 45 back extension or similar. Less versatile for sure but lightweight and easy to store. https://a.co/d/05VSGhkT

I have this one priced today at 160

https://www.amazon.com/Sunny-Health-Fitness-Hyperextension-Station/dp/B08NV3K3Z4/?th=1 i bought this one and it's been working well for me so far.