Rattle can clear??

Wow... I don't know about where you are at, the Napa distribution center for your store,should have a paint mixing bank in house your store can order from. I know Eastwood Products is doing catalyzed enamels in rattle can,as well.
There is a NAPA that deals only with paint I believe here in Spokane. At least I think there is. There is a real good paint supply house on Market St.,
http://www.nationalautobody.com/catalognab/
Kevin is a great guy to deal with.
Check out Eastwood's Elastiwrap. It will cover your sheet metal & protect it, then when you're ready to do the bodywork & painting on it you can just peel it off.
If you try to clear coat right over bare metal it really won't adhere to the bare metal. Bare metal has to be etched & primed for the paint to bond. Also you will hate it when you have to strip it all down to bare to recoat or do bodywork.

http://www.eastwood.com/paints/elastiwrap-coatings.html
Thanks for the info on the plastic wrap. A neighbor is going to do the body and paint when I want it done. Mike has a machine from
http://dustlessblasting.com/
so stripping it will not be a problem. I will be doing some reading on the Elastiwrap...
Thanks again for the info...

I just did the eastwood hi temp clear and am not real impressed. At first it looked beautiful over the engine paint, then once the heat hit the engine it wrinkled real bad on the valve covers. I have them off now stripping them and starting over.
Will not be spraying it, if I do, over anything that gets hot.

I very well may just rattle can prime it for the short term...