Couple things about propane:
1) It burns WAY cleaner than gasoline does, you'll pass any emissions test no problem
2) You will use approx twice as much propane to go the same distance as the same engine on gasoline
3) Propane is a very high octane fuel. If you can, bump your compression up to make use of it
4) Your bone stock engine will not have as much power on propane as it will on gasoline. Propane doesn't have nearly the energy when it burns as compared to gas
So yeah, if you want to run propane, take a run to the local shop and check the price out. If it is less than half the cost of gasoline, then it'd be worth converting for the cheaper operating costs, but if it is more than half the cost, then don't bother, cause you'll be spending more money and getting less power in the long run.
I'd look into buying a used setup if I was you, you can buy them with the tank for like 250 - 300 bucks, only thing to check for is to make sure that the tank has been recently certified, as it isn't really cheap to get done. You can install it yourself, but you will need to get it inspected before you are legally able to run it on the road.
