Great post.
Sounds like you know your stuff.
If I were you I would have people that have had you mod or sell a radio that you have put a mod in put how happy they are on your site.
I have had some real hacks screw up some good radio's.
I have had a 148GTL and a General Grant for 25 years and I am real unhappy when i take them in just to make sure they're doing what they're supposed to do.
I am happy with a variable and a small amp for my base and my motor home.
You can email me at boeing46@yahoo.com for a price just to check my old timers that have served me well for many years.
If i get them back working well and not hacked up I will use you for all my radio needs.
I could report here or post on your site if you set up a comment section.
Good luck and I'll let the folks know if you are what you say you are.
I began having the Ham Techs at Boeing Long Beach who hated my CB radios start doing my work because of the CB shops that would give me back a radio that was splattering off frequency or my finals were toast after a short while. I would have them just put it back the way it was with my variable.