I have 2 older SP 101s made in the 1990s (?)...but you're not going to save any money except in the long term. You'll just get a better gun that will go up in value.
One has orig. grip with inserts plus wood panels and box, papers, etc. The other has no box or papers but does have an extra set of grips...Pachmayr, I think.
Let me know by PM if you are interested.