Hi Clive,
The clay and quick detailer and good products, however, there are better alternatives available to the SRP, Gloss Guard and Tech Wax.
Depending on your budget in our opinion you would be better to first of all clay the vehicle with the clay kit you already have, and then use something like Lusso Revitalising Creme (doesn't create any dust or leave behind any white residue) and then finish with a carnauba paste wax, such as Lusso Oro, Dodo Juice Purple Haze or if your budget allows - Dodo Juice Supernatural.
We feel that if you use these products, rather than those you've listed, you will find them easier to use and you'll achieve better results.
With regards to the AG HD Wax, it does a good job, however, we feel that there are better products out there that are better value for money and achieve better results.
Hope this helps
Taryn and Jim