howdy Rich, Ok, to answer your question about pan am fonts, you might try looking at the links found here first: PAN AM FONT - Google Search . Apparently you can download the various fonts as well as some logos. As for making the actual decals, they are really simple to make providing you can get the proper materials. Testors corp sells a decal making kit which includes decal paper (Both white backing and clear backing) the fixitive spray which is applied after printing and a mini cd with a few decals you can use, including flames, sharks teeth and other generic images. However, once you have the paper and the fixitive, creating the logos are really quite simple. First you test print a few of your images to get them to the proper size on plain white paper. Once you get the proper size, you simply print the image on the decal paper, app;ly the fixitive spray and allow to dry. Then cut the decals out and dip in water and apply to the model. You can find the decal kits online, just search for "Testors decal kit". Below is a photo of the product: 
This is the Custom Decal System from Testors.
FEATURES: Now it's easy to produce your own quality decals with a PC and an
ink jet printer.
The Custom Decal Maker allows you to produce high quality decals for
any of your model projects.
By using the included image database, you can choose anything from
car flames and graphics to license plates and aircraft markings.
Once an image is chosen, you can add text, change the color or adjust
the images to your needs.
There's even a free form section so you can design your own decals
for a personalized touch.
INCLUDES: Decal Maker Software CD
Special water soluble (slide) decaling film
Spray decal bonder
Custom graphics (information & designs)
Complete instructions
The price is about $10-$15 (US) depending on where it is purchased. If you are in the UK, I would search google for this term "Testors decal kit in UK" to find a retailer near you. I hope this helps, Greg