Hi Frank . . .

I am running the Buffalo Conversion. I believe that the Filling Station is still reselling them through their catalog. I see that parts123 site still has the photo online: parts123.com

Of course the old access plug isn't big enough, so you need to create an access hatch in floor for servicing.

regards,
stock49

PS the conversion assumes the 4 top screw style master cylinder. Not sure what year it was introduced. You might need to find a newer style core.