I have not used their pre turned pots but did use one I got from a gentleman on ebay that turned out to look nice I think and also sounds nice.
You started by picking the pot you wanted, then the soundboard and then the surface. You would sand down the pot, install the pedestal ring (His kits now have that preinstalled) glue in the soundboard and then after letting that dry you would glue in the striking surface, in my case slate. Here are some pictures to show you the process and also I will give you a link to the gentleman I got them from. By the way he also does other kinds of calls as well.
The pot I chose to use, sorry I forgot to take picture of the beginning before I had put polyurethane on it.
IMG_0349 by
Sir-diealot, on Flickr
Glass Soundboard and slate surface
IMG_0338 (2) by
Sir-diealot, on Flickr
soundboard pedestal ring glued in place. (I know it looks horrible, I bought to big a container of glue and it came out way to fast and I had a hard time centering it because of a hand problem)
IMG_0332 by
Sir-diealot, on Flickr
Glass soundboard installed.
IMG_0342 (2) by
Sir-diealot, on Flickr
Slate glued in.
IMG_0347 (2) by
Sir-diealot, on Flickr
Soundbite of the call. I am not the greatest caller.
https://soundcloud.com/user-933394494/sycamore-turkey-call-pot-kit-i-madehttps://www.ebay.com/itm/1-Custom-Sycamore-Turkey-Call-Pot-Unfinished-w-Pedestal-Ring-Included/222781676842?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649Here is a link to his other items as well. I spoke with him on the phone about another call I am going to be making of his and he was a very nice guy, I had also asked him a lot of questions on ebay and he answered all of them very politely.
https://www.ebay.com/sch/crgamecalls/m.html?item=222781676842&ssPageName=STRK%3AMEBIDX%3AIT&rt=nc&_trksid=p2047675.l2562