Hi Philip...welcome to the Forum
Once again, I find myself completely agreeing with Magnet, who's words are indeed pearls of wisdom....buy cheap, buy twice!
One other consideration for upgrading brakes is to switch to braided steel hoses (Goodridge) which will enhance the pedal pressure (less swelling of the hoses, opposed to standard rubber ones) and producing a firmer pedal. Usually around £50 for a complete set.
Keep us updated with your progress
Cheers Trevor