I am only aware of the regular stations for 35 vouchers and the attunable stations for 250 vouchers. I am not aware of any crafting stations that cost 125 vouchers.
You probably mean the attunable craft stations. Somwith these, you take them to a crafted set station (twice born star, Hundings Rage, etc) and "use" them. They then copy that station so that it becomes able to craft that set, and you can craft that set in your house.
You may tune these to a station ONE TIME only. Once used, they're permanently for that particular craft set.
Is Uncle John's band calling you? Do you daydream about Sugar Magnolias? Is your favorite sunflower a China Cat? Tired of Truckin' alone to Terrapin Station? If so, share some Space with other hippies & deadheads in the guild Sunshine Daydream! Send a message in game (PC-NA) to Kaibeth for your invitation.