I’ve stayed the night on Elizabeth back in 2020. Great site and we just trolled crankbaits along shore and had good luck for walleye and bass. Depending how long you’re intending to base camp it’s a great spot, I just know a full day there would be plenty imo.

Regarding the Halliday/sturgeon portages, when we did them they were in good shape. No crazy mud holes or overgrown sections.