Where Can Find Cheapest Technician To Remove And Install Bath Sink?

i broke my bath sink and i need to change it, i know some people say you do it by yourself but i am really not very good with tools , so where can i find cheapest technician for these stuffs i called a company but technician asked for 420$ to install and remove old , this is alot of money does anyone else know what can i do ! i live in Saint louis MO by the way