FM transmitters

I guess this is the best place to post it but I am on a old farm/ranch out in the boonies, easily have 200 feet to walk around I hate generic radio with a passion would love to get something that would do 200-400 feet.

I have looked around and can only find kits starting at 170+ I want something already built and under 130 ><

at this point and time if tis stable clear audio I don't care if tis mono or not..... it beats trying to use a walkie talkie.....