Complete MFSL Ultradisc One-Step Collection

I have a complete MFSL Ultradisc One-Step collection that I am thinking about selling. Everything from the first disc (Santana Abraxas) all the way up to the last one released (Eagles One Of These Nights), all 22 disc released so far. All are brand new and still shrink wrapped except the first 2 (Santana and Bill Evans). These two disc have been played maybe 4-5 times each on a high end TT and are in perfect condition. I have never seen a complete MFSL Ultradisc One-Step collection for sale on Audiogon, or any other site. So my question is; if this is, I suspect a very rare and unique collection, what do you think it is worth?