I wouldnt buy the clay kits. The microfibres and applicators you get in the kits are cheap crap from china that should go in the bin (specially that megs one) you get bugger all clay as well. The liquid wax is cheap and nasty and you get hardly any. The megs detailer is good but never by ready mixed detailer because you are being ripped off.
Basically get 3m clay on ebay and you will get like 5 large blocks for 15 quid. In the kit you get 2 tiny thin slices. Clay is clay, and clay is cheap and readily available. dont pay a premium for it.
And buy a concentrated detailer like dodo juice, or garry deans infite use detail juice.
Dont bother buying applicator pads specifically made for cars. Buy little foam cleaning pads for babies in tesco's. They are softer than applicator pads and about 5% of the price.
In terms of cloths all you need is a Master Clean Eagle borderless cotten cloth. It is THE best cloth. you need no other cloth apart from waffle weaves for removing excess liquids. Nothing else should ever touch your cars paint from the following
noodle wash mitt (or lambswool)
the little baby foam applicator pads for wax
waffle weave for liquid removal
eagle master clean bordless cloth for removing wax or sealent. (or excess polish when polishing)
thats it nothing else touches your paint. Avoid cheap microfibres. Do not buy any microfibre if its "made in China" (korean only you can feel the difference in quality)
I disagree with much of what you're saying.
Unless you're a pro do you really need loads of clay when you only need to use a small piece maybe twice a year? Not really is the answer, so why buy 300g (3-bars) of 3M for £15 when a 200g bar of Bilt & Hamber is less than £10 and is a FAR superior clay that only requires water as a lube.
Not all clays are equal. There's a lot of fake 3M clay floating around eBay at the moment. It's closer to Blu-Tac than detailing clay so only buy from trusted sources.
Baby sponges are impregnated with baby oil, never use one on your car. Dedicated foam applicator pads are about £3 for 12, hardly a rip off.
Don't use quick detailer when claying, a drop of car shampoo in a 500ml spray bottle works perfectly.
Borderless cloths are great but expensive when compared to normal microfibers, if you fold a normal one properly the edges aren't a problem.
Junkman is great but don't take his word as gospel, there are better ways of doing things properly.