Tone....agree. One thing all manufactures have done well is get just enough material down to get marginal coverage.
Vipr pwr....any urethane clear will be fine. I'd go with the one your local auto paint supplier supports. Most likely its either Dupont or PPG. Many other Manufactures supply this type of paint. Yes, even Sherwin Williams. Regardless, I think you need to do some 'readin' before you jump into this. Do you have an HVLP gun? Do you know how to prep for paint? If you are not very good with HVLP you'll need to know how to wet sand up through final polish. You'll need a polisher along with materials to go from wet sand to polish. As for flex agent...in my experience its not needed. Obviously go by what your paint supplier recommends. Other min things you'll need.....wax/grease remover, tack cloths, respirator, strainers, gloves and of course reducers and then there is a min of a 5hp compressor with a quality water extractor. HVLP guns need high volume of air to properly atomize the material.
Now....your paint supplier CAN mix up what you need and load a bunch of aerosol cans however you'll need to diffidently know how to wet sand/polish. Cans just can't put it down very good. Asking him to do this will probably get some strange looks and he might refuse...guess all you can do is ask.
Personally, pull the front cowl and drop it off at a local painter. Tell him what you want and while he'll point out what its going to look like due to rock chips etc you can decide what you want. (he'll want to do the job right by applying color coat/clear coat) If your local paint shops won't help go see your local Earl Scheb. They will throw paint or clear on anything....
Sorry if I sound like I'm discouraging you but unless you plan on doing more painting (justify costs) I'd turn it over to professionals to handle. Again, I cant stress enough that this type of paint is not something you want to take lightly regarding safety...its nasty stuff. You thought your college days killed lots of brain cells?
Doing this yourself the right way will end up costing you close to double what a paint shop can do it....if you were to do this yourself with the intentions of getting a professional result.