This is my 150# Fisher circa 1939 7/8" hardy
The pritchel hole was either a very tight 5/8" or a sloppy loose 9/16" , I bumped it up to a proper 5/8" to make it easier to fabricate tooling for the pritchel.
It came with a steel base, but was was way too tall...almost bench height.

I re-used the 3/8" wall pipe/round tube from the original stand, but cut it down to proper anvil height.
Before welding the top plate I double lined the interior with heavy plastic trash bags and poured in 2 bags of dry play sand. The steel base itself was over 100# + 120# of play sand. The entire rig is sitting at about 370#
Found a "roadkill" semi truck mud flap on the side of the highway and used contact cement to affix it to the bottom plate, this got rid of any steel on concrete wobble effect. Not seen in the picture, it has a steel band clamped around it, with hammer holders all the way around.