Mike,
St-Jean Chrysostome is an alright place to go but get prior notice because it is primarily used by a parachuting club and they fly ALOT of jumpers (over 300 per day). It is not used frequently as a general aviation airport. Owner is Pierre Nadeau. Call him. 100ll and Jet B available.
You might try St-Lambert-de-L?vis (ST7) where a lot of homebuilts (3-4 RVs in 2006) are based. 2700' grass strip, good condition, no fuel. Quebec City airport is very close by for fuel and easy to get to. While getting to the airport for fuel, you should ask the tower for a "tour de ville" (sightseeing tour). They'll accomodate you.
Cheers