G van sender question/problem

I have a really clean sender one of our members here in LA needs but when I noticed the wire from the rheostat is brittle at the top and going to break off. Tried googling for that wire but came up empty. Can this be fixed using some other type of wire or does anyone know where I can buy the wire from? Also what type of solder needs to be used. I’ve attached a picture. The sender in the picture is not the one I have.
Richie

there are some rebuilders of senders.

you can fix it,,,,,,that screw needs to be insulated from touching the cover so there is a grommet in there,,,,,and it got to be watertight,,,,so gas dont leak out through the screw,,,,,,and some use a strap and some use a wire to connect the sender to the cover,,,,,,cut it and solder it,,,,,if the screw comes out, take it out of the cover so the grommet does not melt,,,,,,if it is riveted in, just use some rosin core solder and make the connection good,,,,,,

The one in the pic you used was one I rebuilt! That one had a rivet and the ribbon wire was cracked there too.  I drilled out the rivet on a drill press about 1/4" deep and tapped the hole for a 6/32 screw into the brass pin to hold the new ribbon from the new sender I spliced onto the tube.  Look close and you can see the stainless screw head.  Do whatever works! Its not critical as long as it won't fail from vibration, a wave of fuel slamming against it on a turn, etc. it has to be strong, a wire bending back and forth from fuel slosh will eventually break and you'll have to drop the tank again to repair it, solid wire is better.

I can second the prior comments on no problem redoing the connection.  I frequently rebuild sending units. PM me if you need any details.