First of all THANKS to you all for your responses and input and the amazing depth of your knowledge. As requested I am posting a few pictures of the cars. and here is a recap of my process.
1. The cars were soaked in 99% alcohol and stripped clean then washed and allowed to dry
2. I used Tamiya light Gray primer which dried for over a week
3. Used Scalecoat-II Yellow gloss on the sides
4. Used Krylon Blue Flat on the doors, ladder and roof-top walkway
5. After the paints dried for about 3 days I applied the decals.
6. After the decals set for 3 days that's when I sprayed the Krylon Clear Flat. The yellow paint crackled with the exception of the areas under the decals and the Blue paint faded. The result is not a total loss as it adds to the weathering which was the next step (currently on hold). It just wasn't expected.
