this guy makes these tramming tools himself in his workshop in Boring Oregon. there are a few youtube vids by prominent machinists endorsing it.
you can buy it without the dial indicators and use your own.I haven't ordered anything yet, I have the Accusize indicator in my cart but I like that the unit that yota posted is made in the USA other then the dial indicators are made in China.
Where is the Accusize stuff made?
or you can make the tool yourself on your new mill. just a bar with a pin and some holes.you can buy it without the dial indicators and use your own.
I don't know if you need any more than enough room to operate the tailstock handwheel. I need more room on mine to access the circulating pump. I also need room behind my lathe to access the electrical panel and main power switch. And if I ever need to the motor and belts. Depending on your layout it might be nice to have a work surface, maybe the top of a roll around tool cabinet at the end.