Mark,
From time to time, Ozone Elements goes on sale for 29.99. I think it may be on sale at plugin boutique right now for 19.99.
Ozone 9 Elements packs a lot of punch for 30 bucks. It has a stereoizer built in (Imager) and also a master assistant button that will listen and make suggestions as a starting point.
The presets I think are more than enough as starting points for most mixes.
As I have said elsewhere, the "master" is really a final little sprinkle of fairy dust--the hard part is in the mix, and if you are careful with effects and EQs on each track, then the master should be easy.
It is a mistake to try and solve mixing issues in a "master"--which I am sure you already know. You cannot take the tomato out of the tomato soup once it is made, so to speak.
Anyway, for ease and economy I have recommended Ozone 9 Elements to a lot of folks and they seem happy. Sometimes less is more--though I am sure Ozone would be happy to sell you the $5,000 version.