Hi Tony, my wife is profoundly deaf but has a cochlear implant, despite this handicap her other senses appear to be heightened to compensate, needless to say she seems to know everything I do even before I do it and it doesn't always meet her approval. We share the same email address so I have to be wary of what and when I order online, I find that if I can intercept incoming email invoices for items that I rather she didn't know I ordered, tools etc. And I transfer them to the Archive file because she never looks in there. A few years ago I managed to purchase a micro mill and take delivery of it without being detected, she saw it in the workshop eventually and I had to fess up. In respect of hear hearing loss she can hear quite well with her implant, so much so that I continually have complaints that I have the telly up too loud but I do suffer myself from a substantial hearing loss from unprotected exposure to gas turbine engine noise and my hearing aids definitely need updating. Back to your workshop, go as big as you can afford and insulate you will not regret it.
Dave