I'm not convinced that the T/Spark cam-drive area is all that bad.
I changed my '45 belt at 96,000 as the s/history showed it had last been changed at 60,000... The belt I took off (a Gates) was almost indistiguishable from new, apart from the pulleys had shined up the back a bit and taken most of the printing off... though I could still see it was a Gates belt. The teeth were untouched and the ribbing marks only partly worn.
I put a new Alfa parts water pump on it then, since it looked like the original one was still in there. Again, the old one was a little dirty but otherwise the bearings were tight and there was no hint of any leaks.
Come 132,000 and I swapped the cam-belt again. The 96k (Alfa part) belt was in even better condition than the Gates belt. It seemed almost criminal to throw it away.
The same goes for the pulley and the tensioner.. all nice and tight and if you couldn't see the dirt on the old ones you couldn't tell which was which. Without a doubt they would have run to 60,000 miles rather than the 36,000 I changed them at.
This time I left the variator. It was my plan to change it at 132,000 and then alternate changing it and the water pump at cam-belt time.... (so each one does 72,000 miles) but the variator is still hanging in there, and I've left it alone. It's the original variator out of the factory.
I should add that my belts do 36,000 miles in around 2 years.. so they're not in there for ages. If your belt is anything less than 3 years old, it'll look like new, even if you've done 48,000 or even 60,000 miles on it, I'll bet.
T/Spark looks splendid for cam-belt, as far as I'm concerned. Dunno how anyone else has problems with them honestly.