@adamrice@c.im‘s advice is excellent, came here to recommend a cheap alternative: get yourself used shimano breaks from the 90s off of ebay.
These for example will brake better than the brakes you have installed on your bike and cost EUR 37. Search for Shimano 600.
I came here to say this - those are old steel rims, and they notoriously break a spoke when you don’t want them to. Especially traversing the alps you don’t want a spike to break without a workshop around. They may be in good condition, then there shouldn’t be a problem at all, but you should definitely check them.
Those tires rip! How much space is there between tire and fork, looks like a tight fit.