Disjointed thoughts on your choices:
Of the three I'd choose Tikka, but of the universe of choices I'd choose a Savage or an old style Ruger 77 or maybe a Ruger 1 or a Marlin levergun. Somehow I'd be less worried about dropping a Marlin on the rocks than a Tikka. First scratch on a Tikka would be like the first dent in a new car. OUCH!
Of your three choices I'd choose the .270 and shoot 130 or 150 gr soft point at deer. (30-06 was WW-I choice for shooting through sandbags to kill German snipers wearing steel helmets and not for deer IMHO.)
In a universe of choices there are also 7mm08, .243, .25-06, 257 Roberts, 30/30, .35 Rem. and a whole lot of others which have been endlessly argued. In the universe of all deer rifles I prefer .270, .243, and .35 Rem in descending order of karmic correctness.
As for the scope, I've got a cheap 40mm scope on my swamp hog hunting rifle, figuring it is easier to replace a $40 scope than a $300 scope, but for my deer rifles I have Leupold 50mm scopes. That extra 10 mm and the bright Leupold optics makes a real difference in the 10 minutes after dawn and the 10 minutes before dusk.
Splitting the difference between costs one could look at a Bushnell 50mm. I hunted for 20 years with a Bushnell before I could afford a Leupold. Didn't shoot much but I hunted.
BTW yellow or red lense coatings seem to work better than blue ones in hazy light conditions. Don't ask me why. May be a matter of karma again.