one thing that I've forgot to mention which may have caused some confusion is that I speaking from a manufacturing aspect and I'm not in the retrofit business . I'm just speaking from a general business perspective , but the same should apply in my opinion .
Sometimes when starting into business a bit of sacrifice and compromise has to be made to get the name out there . That doesn't mean to bow down to the customers and work for next to nothing . Especially because there is the what if factor , what if is when things go south or there are unforeseen obstacles in the way .
I don't modify my products upon request , but , I have a few solid customers who need slight mods so that it fits within their needs . Mods are considered custom work at an extra cost , the what if factor is always attached as my insurance for when things go south . One quick mod may equate to a possible broken tool , scrapped part or any other thing that may costs me more than it was worth
I've done a lot of retrofits , and the what if factor came up on plenty of occasions