Hi Claude, welcome to the forum
First, what kind of shop? What do you want to do/make? While there are many tools
that should be in every shop, there are tools that are specific as to what you want to
Lookin at the profiles of members on here will also give you an idea what you may or
may not need. Some, or most of us have listed what we have in tools. I know when
you first start, the whole idea can be overwhelming, but start with square one, instead
of the whole picture, and that will help. The profiles may also tell you what they're into,
and that will also give you an idea.
As for used tools, I always say start with your local pawn shops. That's where I got a lot
of my tools when I started, for two reasons: One, when I got my router, I didn't want to
spend a bucket load of money on something that I may not like, or worse, not be able to
do. Secondly, you can get name brand tools at a decent price, as a lot of contractors who
set out to start their own business but don't make it, will sell their tools off to a pawn shop,
and they bought name brand. Just be careful, and mindful what you get. I try and inspect
them for abuse overuse.