Good point, if you need to reduce CPU load then using the UAD versions of native will be your friend. I just suggested using native plug-ins natively because some of the UAD plug-ins are serious DSP hogs, BTW turn 'DSP Loadlock' off in the UA Control Panel and this will save DSP on modules you are not using e.g. if you just using the pre-amp of something but not the EQ or compressor.
Yeah, Mixing Foundations is great, are you continuing with Next Level Mixing? Danny goes into much more detail on the mixing process, best thig I ever did, doing that course.
What style of music do you produce?
I purchase everything UAD now (analogue emulation wise) I think they sound the best and sound most like my hardware but I started out on UA so don't have much overlap, well apart from Waves but I get all them included in my bundle, which I had for over a decade
The plug-ins you have picked so far are top UA products I use all the time and highly recommend
Dimension D is awesome, I am sure that will come as a bundle as a 'one pick'? The RE-201 is awesome as well, the new versions are the same code just with a new GUI and name, something to do with Roland licensing...