Well it depends…
You can do uplift/lift stuff at Innerleithen and Ae through Uplift Scotland most weekends. Glencoe and Fort Bill do lift-assisted most days (weather dependant) as does the Lecht.
Trail centres are scattered all over the place, so you could maybe try to pinpoint one or two big rides you fancy doing, then tack an uplift day or trail centre day around those.
An example would be to do a couple of the big, all-day rides around the Tweed Valley, a day at Glentress or Ae or Innerleithen riding XC stuff, then an uplift day at Ae or Innerleithen. Nice and compact, and you won’t spend too much time driving around.
Alternatively, do a couple of big rides around Glencoe, Kinlochleven, do an uplift day at Glencoe or Fort Bill, then do some trail centre stuff at either Fort Bill or Laggan (about 30 mins from Aonach Mor).