So I am putting together my order for a new CNC based TAIG.

After reading the assembly directions I can see there are a few items I will
need to get before it arrives if I am to start assembly right away.

Where might I find a source (online or maybe even a local/chain store) for a decent quality square and other items needed for truing up the mill?

I have a few local shops but they cater more to the real pros and seemed pretty expensive.

TIA
Darren