I am re-barreling a Savage short action, Pac-Nor sells drop-in 45cal barrels to shoot smokeless. They use a standard Savage plug but I am getting a plug to use 243Win cases as the primer carrier.

Alternatively, if you have an Encore SMI makes a smokeless barrel.

You can convert just about any action into a smokeless ML...I've seen Savages, Rem700s, Ruger #1s, Encores.

From a cost perspective, the 10-ML is probably going to be the cheapest option. By the time I bought the aftermarket barrel and a new stock, I was over the cost of the 10-ML. But the 10-ML doesn't come in .45 and it's now accepted in the smokeless community that the .45 is probably a little more ideal for smokeless (and allows you to shoot sabotless).

Besides, if I want to shoot a .50 I have a great Omega that I love to shoot.

The Savage is a flexible gun. You can be progressive and shoot 200gr bullets to 3000fps (if you are brave) or you can load them to the same levels as a normal ML but just not have to clean them.