rads are around 275-375 in USD , and the labor is next to nothing. i can do a rad in less than half an hour, so id say they will charge you an hour to hour and half for labor, dont forget they have to test the car and bleed the system.
do you really need new hoses? are yours getting soft? if so then yes get some new ones, if they still have some stiffness to them , than why bother. also dont forget you gotta pay for the coolant