[GreenKeys] Mod 28 parts help

[W8MAQ at aol.com]

I'm getting near completion of my 28 KTR cleaning and fixing project, but  
surecould use some help finding the listed parts below. Anyone who might have a  
stash or a parts unit, I would appreciate some help. I tried Fred Schmidt, 
but  he's reportedly out of business due to his advanced age; I never had a 
reply  from him, which is quite unlike Fred. Best wishes to N4TT.
 
Here's the short list of parts I'm looking for, Teletype Part No. if known  
and description:
 
173965          Type ARA Type  wheel for LPR
unknown        FIGS Keylever for Model  28 Keyboard
173979          Head, hammer  (composition print head for later type LPR) 
(head only)
or
175138          Entire  modification kit to install composition print hammer, 
levers etc.
 
The following part numbers comprise the original METAL print head. All of  
the listed parts would be required to retrofit the earlier design.
 
156478
156476
163113          Qty (2)
161524
135901
119649
74553
22746
 
Thanks in advance for looking and for any help with my parts list.
 
vy 73 de Jim W8MAQ
Grafton Twp, OH