Well, after looking at a few datasheets, plus a nice Yugoslavian
website
(http://mikroelektronika.co.yu/englis.../chapter4a.htm
), I've come up with this circuit.

http://i9.photobucket.com/albums/a77/Rover_Wow/AMFM.png

So, how is it? Think it holds water? And how much would the budget be?

(And yes, I've already checked the voltages, and it works in a range
from 4.5-6.0V.)