You never said much about the bore condition other than the original peek at it suggested it was fair to good. If the bore is in good condition then I'd say you have a $1000'ish gun on your hands. As mentioned the barrel chop takes it out of the collectable range but it's still very much a sought after shooting gun by those that enjoy such things.
If it were me posting it on the EE I'd likely start at $1200 and if it's not gone after a week start coming down by $50 a week until it sells. Or if you're after a quick sale then list it at $1K and settle for the first offer over $900. You'll get some quick money and the buyer will be pretty happy as well.
This isn't a rifle for everyone though. If it were .45-70 it would be gone in a blink. But there's enough of us that like the smaller bore sizes that it won't be around for all that long.
When set up with the nice Soule style rear and globe style front sights these rifles are very capable long distance shooters. I'm not that good at it yet but even so the results I've had from my old .38-55 rolling block and my recently bought Uberti Hi Wall have had some scoped rifle shooters nodding and saying ".... not bad, not bad at all".
The .38-55 is very much a reloader's cartridge. Yes there's some available but it's usually sized to the later standard for lever action rifles. The older single shots used a slightly tighter bore and needed a different bullet size to really perform. So if you tried it but found that it didn't do well you likely got the wrong sort of .38-55 ammo.
