Sid, just leave the 41 stock. If you're going to modify a car make sure it is something other than a 41 SD coupe.
a. Get yourself a suitable aluminum
trailer, either a Featherlite or a Tommy. They last forever and are easy to pull and a used ones just a few years old are within most anyones budget.
b. Get a suitable pulling vehicle. A GMC Denali XL(6.2 engine that uses regular gasoline} or some other GM four door pickup with a Diesel engine or some other 1/2, 3/4 or one ton,
. with a decent pulling engine in it. I used my 2011 GMC Denali XL to pull my 41 cabriolet from Fayetteville, NC to Bowing Green, KY and back with the greatest of ease. You can join the tour with no worry.

c. That way you can travel in comfort and the missus

will be happy. If she's not, either drop her off by the side of the road or the nearest bus station. You can google the location of nearest bus station.

d. Or do what has been suggested: buy a hot hod already modified to your liking. Trouble is then you have to fudge to join the tour. There is no fun in that for a gentleman.

Good luck,
Charlie

BTW: Please don't let the missus

be privy to. this post. Can never tell if our paths may cross. Thanks.