CVRS Member

Welcome to the forum Ian,
Here’s a link to the Radiomuseum website for the schematics and other info: https://www.radiomuseum.org/r/rogerstube_majestic_montcalm_ch_54.html
As to value, Here in Montreal where a lot of radios were manufactured, Consoles have little value as they are plentiful and mostly around $75 to $200 range. There are exceptions depending on manufacturer and model.

Here’s a link to a Philco that I’ve had for sale for a month at $120 and can’t give it away : https://www.facebook.com/marketplace/item/813414002560227/?ref=search&referral_code=undefined
Best Canadian source I’ve found for parts is Justradios.com

Good luck, Gary in Montreal