Is a speedfoil rm 8 or an hq symphony 2.2 a suitable kite for jumping?

In the right wind you can pretty much get airborne with any kite. The problems arise when you want to come down. It's arguable that the larger the kite, the safer it is to jump with (provided the wind is suitable and the rider is skilled) as it gives you a floatier landing. See with a small kite it will get you in the air but won't necessarily have the lift to give you a soft landing. However, if you're new to kite jumping, best to stick with a small kite and small jumps in the right wind conditions.

let's say i had a beamer 2.5 or a 3.6 and there is average wind can i fly it like a regular power kite if I didn't want to jump and just get a good workout. I weigh about 175 lbs.

Yes.