I would line it back to .32 WCF, find a tang sight, and get the SST fixed. It is an interesting rifle as is, but I do not think you'd recover your costs if you went for a proper restoration. That generally requires a rifle with a number of special features.
Years ago I owned an octagon top, thick side, high wall with a serial number that I remember as being approximately 200. The barrel was marked "Browning Bros., Ogdon, U.T." I wondered if that might have been part of the payment to Browning for the patent rights.
I've owned two 1893 Marlins with the "Browning Bros." rollstamp on top of the barrel. Pretty much a standard thing for them to put their rollstamp on guns they sold, no matter who the maker was. I think they sold guns from most the major makers.
