I believe Wayne Edwards had one as I remember at Shangri-La.
I remember that one well. Bob "Outlaw" Stevens had one for the #57 asphalt mod that Ed Conoran used to drive as well.
agree with Modcrew 18 about Lafrance. He was in the aluminum siding business and I think one of his buses had siding on it. If you visited Cornwall & Brockville in the late 70s/early 80s, there would be about a dozen bus haulers in the pits.
Heard something about Adam Ferri building another bus hauler since he's gone from late models back to mods.