If your gunna do a cab - dont just do one section.
A classic like this deserves a full and proper re-spray , maybe using stencils like the PinballPal ones , but bear on mind they are $140.00 US plus postage plus paint – so about $300 all said and done.
http://www.pinballpal.com/products/stencil/#KISS

either go all the way or dont touch it at all - DON’T just do a ‘half’ job on this cabinet.

As far as I know , nothing can be done ( that would look professional ) to yellowed caps
I think a few guys here may have a set of caps they could sell you for this one.

Mate – I am nearly keen to offer you that if you pay for all the parts needed , and that wouldnt be too much stuff by looking at these pics, I will strip and re-do this playfield for you – free of charge No joke !

Theres also a few small things I could do with that cabinet as well ( not the re-spray mate ) - just other small touches.