OEH,
I'd buy it right now and twice on Sunday. It's worth a heck of a lot more than 700. The chambering is rare to start with. Can you give me the first three digits of the SN? I can tell you more about specific value if I know the date of manufacture. If I had to guess, I'd guess early to late 40's. Which may make it a pre-war. Mine is a 1948 model in 270 but I re-blued and re-stocked keeping the original sights and even the old steel buttplate. I have been offered over 2000 for mine. If you don't buy it, I'll be happy to stand in for ya!