Rebending old hepex ?

25yr old Wirsbo hePex existed beside an oil boiler, circulated ~90f water.

Im at the point of my tear-out where I cut the tubes and remove the remaining iron pipe and CI boiler (got the two 1" unions at the boiler loosened, surprisingly).

Next step would be to reroute the hePex a bit nicer to see where the new Uponor manifold could possibly sit. My existing supply manifold is the higher one, but Uponor suggests (and the new one comes pre-assembled as) supply manifold as the lower rack. The thinking is, if something leaks, the zone actuators wont get dripped on.

I stand a better chance at mounting my new manifold higher if I ignore that suggestion. If I was worried, I suppose I could fab a little roof for them.

The bigger question is… what are the thoughts on rebending hePex that has been sitting for 25 years ? Does it get brittle ? When I cut the tubes and remove all the clamps, Im not even sure if they'll straighten out like a spring or stay in the same shape.

At the least, I would like to use those aluminum bend guides for the upturn below the manifold just to keep it a bit nice ? The new manifold places supply and return fairly close to each other, so I should have enough room to attach all to wall, turn left, and then turn up, instead of the cross-behind as is now. A few of them might have to go straight up, if the manifold ends up about where the in-floor circ is now.