I just had one built. In fact, I'm still in the process of building rounds for it.
The main goal for mine was "light weight". It was/is going to be a carry rifle for an older person (me 
) who hunts in the mountains. After pricing parts, the least expensive way for me to go was to buy a new (used would work great) Kimber Montana and have the barrel removed, a new barrel of my caliber choice setup and installed. Then the whole thing rebedded. This was not going to be a bench/varmint rifle, so a super light trigger was not required. Kimbers triggers will adjust under #2 and break like a glass rod. The Kimber Montana stock is Carbon Fiber and designed by Mel Forbes (NULA Rifles). According to my Gunsmith, the action was the squarest of any factory action he had ever seen. I ended up with about $1800 in it and it is very light and shoots great.
Recently I bought a Kimber Classic (nice walnut stock)used for under $800. It would make a great custom if I was to rebarrel it in another caliber. And, setup ready to hunt it weighs 7.08 lbs. 
When I was pricing, going with my Rem. MDL7 action, the whole setup would have exceeded $2000 and I would still be at the same weight I am with the Kimber.
The barrel I chose was a Lilja, so I'm sure an E.R. Shaw might be a shade cheaper or maybe another brand.
Just my 2 cents.
Here's the custom Kimber..............
And here's the Kimber Classic...............
