How particular are you on the make? You may consider going on gunbroker and picking a left hand savage in any 30-06 based cartridge. It is not that hard to rebarrel the Savage. You just need a barrel nut wrench and a set of go, no-go gauges. You can pick up an Adams & Bennett Barrel in 35 Whelen for $130 froms Midway USA.
I've got a remington semi auto 750 I'm trying to sell. It's unfired, has a new and better recoil pad and a saik removable muzzle break (cost me $240 on it's own). I'm getting rid of it because I can't take a semi to Africa and am making a new one out of a bolt action 30-6. I'll sell it to you with the muzzle break for $575 and without it for $475. Email me if interested.
When it comes to scent, there are basically two types; those that attract and those that mask. I've tried both on many occasions. There are lots and lots of "doe in heat" scents, designed to attract a big buck into range. I've also used a "cow in heat" scent while elk hunting.
Another scent would almost be better named as a "coverup smell". The main goal is to cover up human odor or mask it. Though I don't believe you can ever totally eliminate all human...