The GTI Has Issues

[rocker8742]

Getting fed up with the problems i hae with the '6 and decided i need to get it all sorted before buying anymore cosmetic things so I've put a list of the main problems in here to ask advice and get questions answered
Any help / ideas are appricated

I realise most of these bits are probably simple to you guys but im a tard when it comes to mechanics

Rear beams gone so will be replacing it soon, Any reccomendations for extras i should change/add while its off the car

Central locking is playing silly buggers locking randomly while driving or with keys in ignition, thinking this could be a door loom issue? Whats the best way of testing + repairing the door looms?

ICV is dodgey and needs replacing i think this caused the problem i had yesterday of it not idling at all when started and just stalling - Will be replaced come payday

Radiator is rusty as anything and the coolant keeps going rust coloured even after a good flush, Want to replace this soonish really but is there any major benefit from using a nissens rad over standard replacement?

Thermostat is buggered (I think) sits at 70 when running but goes up when sat still, Plan to replace this at the same time as the radiator to save changing coolant again

The fans dont come on anymore, could this be related to the thermostat not getting up to temp to switch them on? (assuming thats how they work lol)

Got quite a judder when braking hard, which im thinking either warped discs / low pads and discs, plan to replace them soon as, are pagid discs any good?

Got a cracked windscreen but thats a fairly easy remedy lol been quoted £115 to replace it

Needs a service + Cambelt doing anyone fancy doing the belt and pump for me ? Wouldnt have a clue where to start or trust myself enough with that and cant really afford £350 i was quoted

List isnt quite as long as i thought itd be but I've probably missed a few small bits
Cheers

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PS wasnt sure where to put this so its in here, feel free to move