Re: Good scope or Good rifle?
Well...of the two rifles mentioned in this thread, the Marlin is a better choice as a hunting rifle. In many ways the Marlin is an "improved" version of the Savage.
The Savage 10fp is really too heavy, especially when you combine that with a 6-20x scope that is also on the heavy end and way overpowered for deer hunting. That sounds like a 13# plus rig. That is too heavy for comfortable carry, so those choices are going in the wrong direction for the goals you stated.
Personally, I would look at a Howa sporter in .308 for about $400, or a Remington SPS sporter. You have enough $$$ for a Remington 700 LTR. That is a solid rifle with a better stock. It's a little heavier, but is an excellent dual-purpose hunting/light tactical rig.
For optics, a Bushnell 4200 3-9 scope for $250, or a Burris 3-9 with a Ballistic Reticle for $175...or a Leupold FX 3 in 6x which is an excellent hunting scope for a little more.
There are many more optics choices, but any of these are rugged with decent glass and would get you by on the bottom end of pricing. The Bushnell is excellent glass for the money and is very rugged. All three would be plenty for hunting deer out to 600 yds or so.
Depending on what direction you go, you might have some money left over for ammo and a rangefinder which is an important piece of gear.
TC