I wouldn't call it paranoia, I've changed many of the hoses mine on my BEW with 219k. I like to choose my battles for days when it is not raining, and I don't have a business meeting at the office that I'm dressed up for.
As for kits: I looked but didn't find one for the BEW. I picked up the main radiator hoses at my local Advance/Discount Auto Parts as they were Febi brand. I also found the local shop could get the oil cooler hoses. The oil cooler hoses cost me a crankshaft position sensor, because replacing the oil cooler hoses caused me to distrub the wires in the crank position sensor which had deteriorated insulation that was fine until I worked near them...
When I replaced the coolant overflow bottle recently using online suppliers, I added the two hoses that attach to it from the same supplier to get my order over $50 for free shipping. If I'm going to pay $9 to ship the coolant bottle, why not put that $9 toward new hoses?
I still have plenty more hoses carrying coolant that I could change out (like the heater hoses), but I've removed some of the larger potential catastrophic failures like the one below the tandem pump that was swelling...
Looking back at my 30 years of owning used VW's, my only issue with a coolant hose failure was a hose that I had never replaced. It was no more than 10 years old when it sprung a pinhole leak.