Some time ago, while getting one of my TT-98s up and running, I purchased a canvas pouch and one of every tool I need for routine maintenance of the machine going forward. I've attached a picture. So far it has worked out well!

Note that lubrication tools are not included here, nor are non-routine items like soldering supplies, meters, etc. Also, this machine in particular has a governed motor (hence the tuning fork).

I look forward to comments and suggestions about what to add/remove.