Pompetamine SSCX Build - Advise needed!

YMMV but I think it makes more sense to use cheap components and replace them more frequently, than use expensive ones and have to replace them at about the same rate.

My sentiment exactly, no matter how much you look after your chain, it'll wear out in the end.

Also, pompetamine forks are like £50 - where do you get carbon disc forks for that?

If you're really in a budget, Cane Creek 40 headset and that fork will keep the cost down under £100 easily.