"I normally got mine at local
"I normally got mine at local auto supply stores. I found they were not so expensive and you got them either immediately or the next day.
If you cannot make the belt and the timing gears marks match either way, and you are 100% sure you have the timing gears in the correct position, and you are also 100% sure the timing belt is exactly the same size as the one you removed, then in my opinion you should just install it. If you install it wrong, the engine simply won't start, but you cannot damage valves or pistons, as the engine is non-interference.
Also, if the timing gears are pitted or corroded, replace them, otherwise the timing belt won't last. You probably can get a used set of timing gears at an auto wrecker in your area."