The message
from Andy Hall contains these words:

If you have an angle grinder, stands to do right angle cuts are pretty
cheap. A metal cutting disc should do it.

Any idea from where for a stand, Dave?

Lidl had 'em a couple of weeks ago. Depending on how accurate you need
to be - if it's just going into clamps then probably not spot on, then a
hacksaw will get you through 30 tubes in about 30 minutes.

--
Skipweasel
Pay no attention to that man behind the curtain.