I think your best bet might be a congress pattern. Boker makes a congress with a large spearpoint blade, large sheepsfoot, and 2 pen blades. Case makes their congresses with large spearpoint and sheepsfoot blades, and small pen and coping blades. If you want a pointier (wharcliffe) blade, you can grind the spine of the coping blade to make it that way. The medium Case Congress is 3 5/8", and the large is 4 1/4" closed. I don't know what steel that Schrade used, but if carbon (non-stainless) is what you're looking for, you can find the medium Case in their CV steel and chestnut bone handles.
More expensive, but Schatt and Morgan makes a couple that are similar to that Schrade. Search for the Series XVII Rail Splitter, which has a larger clip blade and 3 smaller blades; a sheepsfoot, pen, and spey blade. Or the Series XIX Sowbelly Stockman, which has pretty much the same blades (same types, but slightly different in shape). It just depends on which you'd prefer. S&M also makes a congress with a spearpoint and sheepsfoot large blade and small pen and coping blades.
None of those have exactly the same blade arrangement of that Schrade, but they'll all get the job done just as well.