What else are you contemplating Jeff? There is the Crusader, which is nicely done, not to mention that you could probably pick up some retired sets on eBay of 8th Army at decent pricing.
I'm not sure how well the Rolls will go with some of those vehicles as that was more 1940ish.
As a separate thing you could do a combined LRDG and SAS diorama. I know some of the LRDG issues are retired but you might be able to pick them up at a decent price.
I never picked up the Churchill car although it's a very nice piece because that sub-range just didn't seem to fit in with 8th Army generally so it would seem natural to make this something separate if you were so inclined. I wish I had the room to do so because I liked the look that Andy put together, with the marching band and so forth.
Not K & C but you might want to think about the Figarti Desert Sherman, a very, very nice piece. I think Mark Sable was trying to sell his for a very, very good price. It might still be available. The figure wasn't the greatest but I replaced him with a K & C figure and looks great.
Would love to see Andy do a Desert Sherman as well as a Valentine and a Honey, as well as some Desert planes. Don't think a Valentine is in the cards, however.
Speaking of the Honey Figarti made some nice ones which you can still pick up dirt cheap. Now, they were 1/32 but if you stick them in the background, no one can tell the difference.
Have fun. This is my favorite of all K & C ranges. Maybe I will take a photo this weekend showing what I have.