1. do your mix and whole production just like you've always done at 44.1 or 48khz. mix it to completion, finish off everything. 
2. then take the absolutely *crucial* stems like main vocal, bass submix, drum bus, guitars and the rest and export those with no effects. (a good idea to save the channel/bus/plugin settings here) 
3. upsample to 96khz with the best resampler available to you 
4. start new 96khz project and import the stems.  
5. you probably now have like 3-5 stereo busses to process and mix at 96khz and your machine can likely handle it just fine. 
 
(6. might also be a good idea to render all those synths at 96khz now, but it all depends on whether they play important parts) 
 
everything involving compression, saturation and EQing benefits, reverbs less so.