Barrels are not interchangeable. All need fitting to work, some a LOT. You need to stsrt with barrels of the same frame size. There is absolutely no interchangeability between frame sizes. The same goes for stocks. They mist be at least from the same frame size. And after that, they are still all different as each gun is hand fitted/built. And the same goes for the forends.
Personally, you are wanting to get into quite an endeavor, that would be a labor of love. It would be wiser to let it be. Parts have to come from somewhere.
And it isnt always a good idea to post photos of your illegal barrels with receiver that they go onto and receiver on the internet...
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B. Dudley
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