Hi there, Harvey!
If your existing hive makes it and is strong, you can make one or more splits from it without having to buy more bees. Of course you would need to buy or raise a queen to go with 'em.
Sounds like you might be in an ideal area for swarms/bees around. Trying your luck with a lure isn't a bad idea.
If you do buy package bees, see if you can drive/pick them up from the folks you're purchasing them from.