the last one i saw sell (its been 5 or 6 yrs now) went for IIRC $250 or so, it was LNIB in the box, and was the 1 with the dual liners. i know a few yrs ago the collector interest was high, very high on that model, i dont know if it still is or not, i had one myself back in '00 or so, it wasnt LNIB though, ~ 90% or so, i got $200 trade value on it IIRC. like i said i havent seen one for sale in a few yrs now, ya will just have to do some research on it, see if ya can find one which has sold lately, imho not having a box is gonna knock some value off it as most collectors want/demand LNIB(like new IN THE BOX) shape to bring a premium price but i remember a couple selling for quite a bit in just 90% shape which for a collector knife is unusual.
though it was designed after the brend custom its a LOT smaller than the brend custom FWIW.