Jan -
That estimate is good, my Heyboer transformer work runs $75 to $125.
The prices rise when you get into multiple taps -- or special fabrication requests.
A transformer for a Tube Tester is probably the highest cost, requiring estimate.
====
As far as calling Monday --
remember we are coming into a 2-week Christmas/New Years holiday.
Logistical shipping is a real mess until early January.