So, having watched this, I am going to suggest that you may want to expand your search a little beyond bugeyes. Here is why.
1. We have commented on the various values of Bugeyes. Generally though prices are going up and, an under 10k Bugeye will almost certainly require some work - it maybe the body needs some touching up, it may be the engine or the interior - but, if your accountant says you have even 10k to buy one, that represents a starting point and not the whole package.
2. I love the Morgantown area - but, for the eastern half of the USA the communities are somewhat spread out with lots of hills (mountains?) inbetween. The Bugeye is a great car for 50 miles of fun driving - not so great after that - AND not a lot of storage and what there is is not super accessible (no trunk) So, you would be trailering or having another vehicle for more remote parades.
3. As cute as it is, I am not sure it matches your brand image. Your publication seems to mostly focus on American cars and trucks and such - a Little British Car might imply it is a speciality publication rather than a more general publication.
So, on the basis of all these things, let me make a couple of suggestions:
there are any number of quirky interesting American options well within the price range - Corvair - especially anything Greenbriar. Rambler. Henry J. Just about any step van from the era. The advantage to these is that they are all just a bit bigger - with more storage, more comfort in driving longer distances and often much much more reasonably priced. If your heart is set on an import, Morris Minor Panel Van, Various Standard & Bedford Vans (if you can find them) You could even (possibly) find a Corvair Ultra Van. I might even consider a Vega wagon (I know but they have aged fairly well) or even peek into the Malaise era cars.
Or to go in a completely different direction - a true (affordable) microcar - lets say a Fiat 500 or 600 and a trailer for your truck or van. trailer it and drive it in the parade or park out front.
My 2 cents. keep us posted!