Was in Victoria BC at one time
I viewed this vehicle quite a few years ago when the previous owner had it in Victoria BC. It was spartan. Shop built plywood cabinet and jump seat box as Nick stated. The siren was pretty much underrated and the light was a Dominion Auto model that some in Canada used in place of the Federal Model 17.
So although very bare, it didn't have much to begin with.
It was an industrial ambulance so really stayed on-site more than anything. The odd non-emergency run to the closest hospital that is in Kelowna BC. If the patient was serious, the local ambulance service for the area would have transported.
If I remember correctly, the owner was asking 16,000 USD back then.