I think that Howells is the only one that makes this part. I bought one for my 30 roadster from a vendor that sells Howells parts. The vendor said it would take some work to fit the part. The vendor said that some fit better than others and if it wouldn't fit I could return the part for a full refund, shipping and all. The new part looked good at first glance but came no where close to fitting. Rather than cutting, welding and reshapeing, I sent the part back. I didn't want to ask the vendor to take back the part after I had modified it and still couldn't make it work so I just sent it back as I received it and got a refund . I've been a bodyman for nearly 50 years and I am use to making parts fit. I was finally able to make my original part work after much welding and patching. Good luck, I've been there.
I was getting desperate for a useable part, Nobody had a used one that was any better than the one that I had and it was junk. I did turn one down at a swap meet because it had suffered a botched up repair with brass.