I have 3/4 acre pond which averages about 10 ft deep and is spring fed all year long. I was wondering how i could remove all the bass and crappie in it. (these are the only types of fish in it) so then I could stock trout in it and grow them big without any competition for food.
Nick, welcome to the forum.
My small pond has some similarities to yours, I believe. We mainly have LMB, SMB, and YP. Water temps are like yours. Cool irrigation water fills the pond from May through October. There are a very few BC and GSF, but neither do well. The LMB are the main preditors and only have been growing to 15". As an experiment, I've release about a dozen RBT; they have thrived. Their lengths ran from 8" to 14" at release. I suspect they are eating some of the smaller bass and perch.
If you don't have big bass, large enough to eat the trout you stock, why not try some trout right away. Add some small number that won't hurt the pocketbook, enjoy them this spring and summer, see how they do, and, if necessary, drain and kill the pond at a later date. You might find that the three species do well together. Just a thought. Good luck, and please post all of your experiences!