Since lebaron bonney went under I believe the only kit too available is from cartouche .
I got one from them when lebaron bonney was still in business because it was significantly less and I opened it up , laid it out on the irons and sent it back. Terrible contour and cut .
I ordered the lebaron bonney and it had issues as well but I made it work. I do my own toos.
My suggestion would be to find someone who can do the correct hartz cloth material and can do a custom job, I have a customers 36 cabriolet in the shop now and the drivers side fits poorly and passenger fairly well.
It’s a matter of making sure the irons and the cut and fit of the top is proper and I believe the custom job is the only way to do that now. These cars are too expensive to get cheap on a top which can make the car look bad and your ultimately dissatisfied.
Just my 2 cents worth. Find someone who can handle the job, even if it cost $$$$.
Larry