I was wondering about the possibility of linking this game to steam just as some other games on GoG.com can be. The reason I ask is because I purchased at your site since you got it first - but I would down the line like to have the Steam workshop for the mod content.

Gog users can already take advantage of the Steam workshop as per https://www.gog.com/forum/battlezone_combat_commander/downloading_steam_workshop_mods_to_gog_version - and the possibility of a workshop uploader for Gog users is being investigated.