Your at 4 lbs 14 oz scoped?
The only problem with putting bottom metal on a Montana is kimber only makes steel bottom metal and it's heavy at 6+ ounces. My plan is to buy some Winchester 70 aluminum with the oberndorf style release from PT&G and modify it by 1/8" to fit. If it works I'll save over 4 ounces.
When I had this rifle sitting in its factory stock I was 7lbs 2oz scoped with the tally rings and 2.5-8x36 I've got on it. The only thing(s) I hated was cycling the bolt to clear the magazine and that perch belly. It's hard to tell from a set of pictures but here's the factory stock vs the Pendleton around the action where it felt prego. If you've held a 8400 and a 84l or 84m you already know what I'm talking about.
I got the stock with bottom metal for less then I sold the factory Montana stock. It lost the perch belly but it had a 12.5" lop when I got it. As I'm 6' tall the lop didn't work. I contacted Wayne and he told me he could take it out to a 14" lop for $50. His turn around was about two weeks and it came back looking perfect.
It still balances and fits very well and if I get it to 7lbs 2 oz it won't be that heavy considering what it is but part of me wants this in the 6lb range. If I could modify a wildcat stock to work I should be able to drop her to about 6lbs 8oz scoped.
If a guy wanted bottom metal he's going to be money ahead starting with a kimber hunter and adding a stock like this vs modifying a Montana.
For a barrel comparison here's another pic with a half grown fawn and a 13-27" Harris bipod.