AP rear pads/discs choices - ?

[Pip1968]

Following someone's post regarding the pins seizing in their caliper I checked my pins. Actually, as she has been holed up in the garage for the last few months I decided to put the rears into Lepsons for a refurbish - £100 a pop each!!. Anyway the pins were fine with a little corrosion around the calpier's recess of the 6mm hex bolt in the form of white powedery residue.

Whilst doing that I checked the rear discs ~ 19mm and the pads 10mm. So is there any cause for concern are they within tolerance, should I replace either or both of them and what are the choices - ? I am still running DS 2500s in the front when not on track but am not sure what the rears are... presumably the same. I do not really want RS29s on the rear regardless of any equilibrium or not.

Incidentally I bought a spare set of RS29s for the Porsche's 350mm discs and only looked at my card statement last week £445.29 . I kind of assumed they would be comparable to those for a CSL with APs.

Anyway pictures below. Apologies for lack of clarity. The first picture shows the material side and the second the backs. Both covered in rust from the discs.

Pip