Wilbe,
Its basically just a standard stainless guide gun. The only custom work has been a few after market accessories that I installed myself.
XS ghost ring sights- very easy to install, rear sight mounts in the back two screw holes tapped in the receiver for scope mounts. Front sight replaces factory front sight. It takes about 5 mintues to install.
XS scout scope base- mounts in the front two tapped screw holes for the front two screws of the scope mount hole. and front attaches in the dovetail from the rear factory sight. Takes about 10 minutes to install.
Wild West Guns oversize lever loop- its a drop in fit but it might take some fitting to get it fit snuggly. I used a small plasitc washer to take up the slack and give it a very tight fit. Less than a minute to drop in but might take a little while to get it tight.
Wild west trigger kit- Its basically a drop in fit but does take some time to dissassemble the trigger mechanism. Some minor fitting might be required.
Wild west magazine plunger- Drop in, takes less than 5 minutes. Replaces factory plastic magazine plunger with aluminum one.
The stock work I did myself this afternoon. Completely sealed the inside of the wood and several coats of spray on bedliner to get a nice hard shell on the outside. Took a couple hours.
Its still a 45/70 and I don't see any reason to change that. I have a couple of loads worked up for it that are extremely accurate. I really like the 405gr Rem JSP and H322 @ 1800fps and 405gr Kodiak JSP @ 1850fps. Between those two loads I'm good for anything that you will find running around alaska. Both loads print to the same point of impact and will shoot 1 1/4-1 1/2 groups at 100 yards.