Re: Can this be done?
Unless you have a competent smith with lathe and the knowledge to do a good job at cutting the threads, etc, I'd go with a prefit barrel. Most anybody can install a barrel with the proper tools. I'd suggest replacing the recoil lug with a reputable brand that is thicker than the stock unit. Stockade would be a good suggestion. Just FYI they can do your barrel install to I believe. I've had good luck with their parts.
If you desire, I think you could probably tackle the job yourself, although you would need to obtain some tools, such as action wrench, barrel nut wrench, and the proper go gauge. A no go gauge wouldn't hurt either, but you can make a no go gauge by simply putting a peice of normal scotch or clear packing tape on the rim of the go gauge. This is what I do and it's what I've seen several competent smith's do for precision rifles.
I'm just a fan of the DIY thing! Goodluck