erskine Rear pull, V-type snow thrower part wanted

[Snowball44]

I have a Erskine rear pull V-type single stage Snow blower made in the 70's or 80's. I'm looking for a Wing Kit, it extends the unit to increase clearing swath.. The folks at Erskine say that a ' WING KIT ' was made but they no longer stock them. It mounted on the starborad side, has predrilled attachemnt holes.
thanks
Snowball 44
larryatpf@yahoo.com