Golf R brakes are a decent upgrade, but they are
heavy. I hear it's good enough for daily driving though. You might look into R32 fronts and rears from the MKVs - their brake set up is compatible and supposedly good for DDing with a little tracking. Other budget options is the TTRS set up I just picked up, or stalking used parts sales. I saw someone selling a VWR BBK for $2400 today on this site. You can probably wiggle that a little and still get a great price on a very quality big brake kit that has gone on sale once since being brought to market. MSRP is $2900 and it was dropped about 10% for the first time ever last month. If I was more serious about tracking or autocross I would have sprung for that kit, but I went with the retrofit TTRS set up. In the end, my little gokart is still a daily driver so I need to make a few small concessions. Stopping at K04 instead of Stage 3+, smaller brake kit...
These new snow tires are really nice in the cleared, plowed roads right now. I don't know how much they give up in terms of pure snow drivability, but they feel much more civilized than the WS70s I was using the last few years. For winter tires on wet/clear pavement, they don't really give up much from all-seasons. Ordered some Tiguan steel-wheel caps for $22/each today also. That should complete a nice clear look.
All the work of finding winter tires has had me looking at summer wheels though. Noticed Neuspeed recently introduced a wheel that looks a lot like the VMR 705s - that classic 5-spoke look with a deep concave always catches my attention.