So I was going through the safe and came across a Stevens 200 chambered in 7mm-08 that I've had for a few years.

Probably had less than a box of ammo through it.

I've been thinking of buying a 450 Bushmaster, but now thinking of re-barreling this Stevens.

Any other changes that I would need to make?

After going with a new barrel, trigger and stock - it might not be much more expensive to just go with a new rifle - but I'm trying to weigh all my options.