The top link is a great deal if it's all genuine parts. You never know with some of the US sellers....... lots of Chinese stuff over there.
The bottom link doesn't mention if the mounts are standard or TT. The rear top mounts rarely wear enough to justify replacement, but they are ~ £55 each from VW iirc, so again that is a good price. Can't be all genuine parts at such a low price though!
I went with that stuff from the dealer.......just to be sure!:-
8J0 412 331, qty 2 - TT/RS3 rubber top mounts.
6N0 412 249D, qty 2 - Bearings. Yep, that is a Polo part number, but also lists for Audi....but not VW for some odd reason, they are the latest revision and work fine on MK5s.
N910 216 061, qty 2 Damper top nuts.
N101 277 07, qty 6 - Rubber mount securing bolts.
Plus the strut pinch bolt/nut, qty 2.
Driveshaft Bolt, qty 2. Or if your CV boots look ropey, they come in a CV boot replacement kit, so do those whilst you're there.
What ever you do, do not use GTI top mounts. There's a good chance they will make an awful rubbery squelching noise over speed humps etc. The TT ones do as well, but only a tiny bit compared to the GTI. It's to do with their construction. The metal part of the top mount when used with aftermarket uprated dampers causes it to move too much inside the rubber part of the mount, hence the noise.
034 Motorsport make some replacements with better vulcanizing of the rubber to metal to stop that problem from happening. Awesome might import them.
Are you doing this work yourself?