sure, so for the 1/5th acre pond if you want to do perch (do you mean yellow perch or do you mean 'perch' as a generic name for panfish?) plus SMB and rock bass that can work. What is in that pond already? You said you wanted to clean out the few fish that are in it. Do you plan to drain pond and manually remove all fish (that is the preferred way and some still can survive) or chemical purge?

IF you have time and can pump it down, pump it dry, give it a week or longer to be sure everything is dead or change the pH by adding caustic lime to be sure everything is dead. Your stocking plan will go awry if you find out that some prior fish (especially if they are bluegill) made it through the fish removal stage. Best to start with a clean slate.

The chemical kill will also destroy some of your food chain as it will kill invertebrates, scuds, shrimp if you have them and crayfish. You would then spend some time recreating the food chain before (or while) you add the small stocking YP, rockbass etc. The more and the more diverse the food chain in many ways, the better the mid-level fish will survive.

also read in the threads here about SMB spawning. If you are hoping you can create conditions for that then while the pond is empty (or drawn down a long ways) you have an opportunity to create the ideal SMB spawning structure. IT apparently is a very specific love nest that SMB prefer.