MAybe.  Depends on the low wall.  Some have thin tangs some have thick.  Joe knows.   

Brent

Hey Joe, how are the "Frankentriggers" doing on that low-wall project you were working on?  Was there enough meat there to grind the tang down to the desired profile?  I'm still cussing at my SST that won't hold adjustment.  I guess I will have to give up on bubble gum and get some non-hardening Loc-tite, huh?

Also, to Whitey, don't forget that when you go to double set triggers, you must also use a hammer with a fly so the sear will clear the 1/2 cock notch, and you must use a special, long-tailed sear so the trigger will touch it right.  The single set needs the fly, but uses a normal length sear with a groove to clear the fly.  These parts are (IIRC) the same for both high- and low-walls.

Froggie

Froggie, the Frankentriggers will soon grace my friend's low wall action he's building (having me build) for 22 Buffalo Silhouette shooting. He doesn't know it yet so don't tell him (G). AAMOF I think he musta fergot about the action since I haven't heard from him since my last email to him many moons ago. I'm still looking for a barrel though.

GCurtis, Bert is right about the tang and triggers, they look much like some of the ones I've done. The Frankentriggers Froggie mentioned were my first effort in this direction, have since done several more with reasonable success. You will note that an original short-tailed sear has been extended in order to work with the new DSTs.

As a further answer to the original question, an unmachined casting of a Win DST tang for a high wall can be machined for the low wall receiver, or at least the one I possess could have been done that way had I chosen that option. It's not a job for an amateur but it's not rocket science either, any careful and knowledgeable workman should be able to do it.
HTH, Joe