I think you've received good advise. A lot of fish can live in 2' of water, and if you're comfortable with restocking then by all means use hydrated lime to kill off the existing population and start from scratch. I can supply crawfish in very limited qtys (because we are hungry out here on the fish farm and don't normally sell them). More importantly we can also supply all your forage and sportfish. By all means stock tilapia as forage. Look at the trophy bass lakes in Mexico that are sustained almost 100% by tilapia that live year-round.

IMO, you should stock baitfish after your pond refills:
FHM, CNBG, RES

Then sportfish in the late spring/early summer:
LMB, HSB, CC, Blue Cats

Stock Tilapia the following spring so they don't get ahead of the game.

It's ALL about the fish!