Do all the numbers match? That would make a difference on value. I stole the information below from another post on a different site
I've been watching prices on Gunbroker recently to get an idea because I have thought about selling mine. Totally mismatched G98/40's in average condition are selling in the $500-$750 range. Matching guns start at about $600 for really beat up pitted examples and go up to around $2000 for really nice ones. Average, (and average for a G98/40 is very good) condition rifles that are all matching seem to go for $1500 +/- $250. As others have noted pictures are necessary to give any kind of good advice. These rifles are hard to find and are avidly sought after, but condition really comes into play. They are hard enough to find that you end up seeing real oddball prices too, there was a recent auction where a humped rifle went for $1850 even though the seller admitted it was humped (but not my him), then a few weeks later a much nicer rifle sold for less than a grand