Adam,
I'm embarking on the quest to equip myself with stalking gear too. I'm also looking at a .308 and like you, this is with a view to boar shooting in the future. I also have a kid arriving soon, so need a versatile rifle as I can't stretch to multiple firearms.
I'm veering towards a Sako 75/85 myself but have also looked at Howa which although a good bit cheaper, is still a pretty solid rifle.
I was aghast when I saw the price of European optics. However, my wife bought me a pair of 6 x 42 Zeiss Binos for my birthday and I used them for twilight stalking in Scotland two months ago. As has been mentioned on this thread, the quality of the glass, coatings and construction contribute to the quality of the light transmission and corresponding image. It's expensive initially but good quality optics do make a massive difference.
I'm going to buy a Zeiss or S&B 6 x 42 rifle scope for similar reasons. Also, a fixed power scope will be more affordable and with fewer moving parts be robust. I don't fully understand optics , but a 6 x 42 scope provides an exit pupil of 7mm which is pretty much ideally suited to the human eye, as I read it, since this corresponds to the average size of a dilated human adult pupil .
You can get a Czech Meopta Artemis 6 x 42 for £380. Good scopes by all accounts. The point which has been made about the quality of good 2nd hand equipment to inferior new equipment is valid. If you shop around you can find some good stuff. This place has a lot of used gear.
R. Macleod Son, Tain, Scotland
I'm actually in the process of cobbling a sling together myself. I'm using Uncle mike's sling swivels, stainless steel D rings, Elastomer shoulder pads and 50mm webbing. I'm trying to configure it to convert between a regular carry and backpack carry. Something to keep me occupied. My next project will be shooting sticks. Sorry for veering off topic slightly.
Anyway, I've realised that this is a highly personal sport and all the richer for it. No matter what you decide, good luck and congratulations on the imminent arrival of your baby.
Scott