Here is an offering CW Moss. I just noticed they are sold out. From what I can see they are the same. The 38 deluxe looks very similar. It wasn't that long ago that buying simple stuff like this was easy......Seems that that the trend of vendors running out of old stock and not replacing it is continuing to cause us problems. If you have the originals and some tools or a wood working friend you should be able to duplicate them. They could also be made from steel or aluminum. Good luck!
I don’t think 38 will work. The cowl and the floor are different. It might, I’m not 100% sure on that.
Looking at this comparison of seal sets it looks like there are some differences in them. Mainly the clutch and brake pedal seals.
Well, I know for sure the transmission cover is different because I accidently bought a 39 standard one for my 40 and it didn't fit. So, because the transmission covers are different, I'm taking a wild guess that the floorboards are different too.