Over on the H.A.M.B. nailheadroadster made a number of posts in the summer of 2018 outlining work that he did on his 29... with a very detailed description of how he lowered his car including pictures and a parts list.
https://www.jalopyjournal.com/forum/threads/the-tale-of-my-29.1114472/...
From the Model "A" Trader Parts and Services Directory
John Holland
7208 West Law Road
Valley City, OH 44280
330/483-3896
Model "A" shocks and shock rebuilding.