My short barrelled .280 (aka "Thunderboomer") is great first because it's accurate, second it's easy to carry through the thick woods, third it hits hard, and fourth, being a .284 I have many bullets to choose from for reloading. It does lose some for the shortend barrel but the deer will never know it and where I hunt in the thick woods 50-100 yards is a long shot. It might be better if it was a shortened 7mm-08 but I bought it this way and I like it. If your 25-06 is accurate you might like it as well.
I would worry about that stock on any rifle (or shotgun) with any amount of recoil, there was a picture here of a member who got beat up pretty badly when his gave away under recoil. That said I would be interested in the buttstock for a .22 if you buy the gun and the price is reasonable....<><....
I have a 25-06 in 26" and a long barrelled .280 as well. I agree it is a shame to cut down one of these fine calibers that really shine with the added barrel length and would not do it myself, but if it's already been cut and you can get it for a good price I say try it, mine worked out great...