Steve, I bought handbrake shoes from the seller you linked to last month, thinking they were selling Unipart bearing in mind they use the logo and the Unipart part numbers in their advert.
They list manufacturer as Apec, but what they sent were some no brand rubbish, badly packaged with big chunks missing from the friction materiel where the shoes had been clattering around inside the box.
I opted for TRW, so handbrake shoes can be found
HERE
Brian