I want to remove a radiator entirely and finish the wall as if it was never
there.

The radiator is mounted on a studded plasterboard wall. The feed and return
are 10mm copper pipe and exit the wall close together and perpendicular to
the wall's surface.

I'm comforatable with the draining, removal, plasterwork, inhibtors,
refilling and venting - my question is about capping the unwanted feed and
return pipes.

I want to do this as close as possible so the that it can be hidden inside
the wall cavity. I'm okay about removing some plasterboard to give myself
working room but would obviously like to minimise this as much as possible.

So I know about solder fittings and compression fittings.

Solder - I'm a little concerned about fire damage from the blow torch, and
whether using the torch on the end of the cap will create an effective
joint.

Compression - Concerned about the size of the fitting (won't be able to hide
it in the cavity) and actually getting enough access to tighten the joint.


QUESTION
=========
Are there any clever options that I am not aware of (bear in mind that it is
10mm pipe)?

Cheers,

Nigel