here is the 1907 in .351, you could use 351 brass and trim it, but its a pia. I made some brass from 5.56 brass ,also a major pia. Grafs and son had brass for mine. I got bullets from Midsouth shooters supply.
my advise on disassembling the rifle is DON"T. the recoil spring is a sob to get back in. to clean the rifle I'd take the wood off and drench the metal in lacquer thinner.
value of course depends on condition. with a cracked forearm (and almost every one I have seen is cracked) I have seen them SELL for 450-500 range. have seen them listed as high as 1200. those didn't sell. I acquired two magazines for the 35 and sold them on line for 180.00, they are rare and sought after.