Sorry it has taken so long for me to put my 2 cents worth in, but I have been extremely busy trying to finish a project of that has been going for almost 3 months.
We all take our mobility and use of hands and eye sight for granted, and it is not until something happens that we have to re evaluate how to overcome any disability.
There are several ways that we can alter our working practice, sitting at for example a table saw is very difficult indeed. Even with a power feeder you have to be at both ends of the table, unless you are doing small pieces ( to small and the power feeder is of no use) this is not to say this can not be done. One of the main things is that if you are in for example a wheel chair, the equipment has to be lower to be able to use it safely and be able to see what is going on. This I liken to as a child sitting at the table for dinner, always looking up as the table is always to high.
Having the tools read ally to hand makes life much more easy, but the next question has to be if it is on a tool caddy how easy is it to move ?. As if mobility is a problem then moving a heavy object is just more than difficult it becomes impossible, however a redesign of a shop is sometimes a more practical solution.
I can not give a firm answer on the best solution, as not having a mobility problem I can not speak from experience. However having a disability the one thing I have learnt is that adaption is the key, anything can be done with the right motivation and will.
Disablement of any kind is just another challenge in life, and there are only two options find a way or give up, and who wants to give up.
Sorry again for not putting a reply in sooner, but having badly messed up my only good arm it has been a bit more of a challenge. I am finding ways around obstacles to continue with my passion, hopefully within the next 3 weeks I will be able to post the reason for the messed up arm, and that it would have been worth it.