Brill-o, again I'm really glad to hear you found "Penny" and I agree with what you sy about "Luray" 100% !
Now my suggestion was merely an occassional incident type suggestion (which I know of loop-hole ways to bypass all the red tape for!) Now as far as making it legal as far as licensing, insuring, and biz license and etc. it wouldn't be difficult at all! But not cost effective, just as fuel costs would not be for a "full time biz adventure of this type!" However there are ways to get around some things such as setting yerself up as a historical society or museum for antique buses which would exempt you to many issues! As far as licensing and insuring one, the law is cut and dried, if it will pass a DOT inspection ! They can not refuse to license or insure you! Again the historical society with historical plates is the way to go! Also if you do not "charge" for the services, but as a not for profit historical society "accept a donation in the amount of ____ to cover operating and driver pay expense's only" it is not a commercial vehicle eliminating 99.9% of the red tape BS! And a licensed charter operator I/we would lease the unit & driver for a "historical learning experience" for the necessary above mentioned donation (along with a reasonable owner/driver gratuity) which would allow us to have our insurance cover our passengers (should the unmentionable ever occur) while keeping it all legal and on the up & up ! Just food for thought !
But in the mean time lets concentraight on getting "Penny" usable and you & yers enjoying her before we move on to other possible ventures for you an "Luray"
Good luck, and best wishes to you, Brillette, and little Brillette in your future adventures! BK