The Nacho (GMTX 2147) and 804 are on the Barre WACR run, I think they've just started running again, on the "new" track they laid last year. They don't go very fast, so you'll have plenty of shots as long as you don't get bunged up in traffic. The one time I got them, they were out at the Junction, grabbing inbound gons from NECR.
Avatar: NHV 669 at the south end of the "Pompy" in White River Jct., VT on 4/29/1993. Photo by Richard Roberg.
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