Any question answered...

I some how lost all my most commonly used bike tools, so looking for replacements and recommendations;

Crank Puller
8mm allen key (ideally one that comes with a square adapter to fit other tools)
Full Size Allen key set up to 6mm
Pocket Multitool
Decent Durable Chain Tool

I got an Aldi tool set for £19 which had all of those things in it. It's not the best tool set you'll find, and a couple of them aren't the sturdiest, but I've built a bike with it and it's holding up.

All the tools for the price of one (from Park etc) isn't bad.