Braden,
I'm sorry I have no way to post pictures.
At least 10 to 20 years ago in either a muzzle loading or modern rifle forum, one guy showed a "supporting device" that is used in conjunction with a bench vise for long barreled guns and lay them on their sides in the vise.
The Support Device is just a piece of 2 by 4 with two upright boards mounted to it, a wooden support bar, some leather and two sets of bolts/washers/wingnuts. The upright boards had long channels cut in them where bolts would slide up and down and tightened to keep the support bar of wood (wrapped in leather and with holes on each end for the bolts/washers/wingnuts to tighten at different heights) at whatever height needed to support the front of the firearm.
The idea is that the support device is free standing and can be easily moved wherever on the bench that is most convenient.
When I finally knocked one together, I found it very useful for placing the gun right side up or right side down in the padded bench vise and supporting the front of the firearm as well. I didn't have a way to make the long channels in the upright boards, so I used two pieces of wood that tighten around the uprights. Though maybe not quite as strong, it is still plenty strong enough.
Maybe someone else has something like this and could post a picture?
Gus