I got mine on the EE. Just be patient, one that you like will pop up sooner or later.
They usually go quick if priced reasonably so you gotta keep your eyes open.
+1. They show up regularly in the EE, priced between $700 and $1000 depending on condition and accessories. You should be able to find a decent shooter for $800 or less.
Some things to note (the experts can jump in anytime and correct me):
1) Don't buy the "all numbers matching" line on a Garand, they don't. There is only one serial number, located on the upper rear of the receiver. All the other parts have part/drawing numbers on them and they don't match anything beyond the appropriate drawing.
2) Most Garands were refurbed at least once, if not several times, and will have parts from different manufacturers and of different vintage because the military armourers didn't care about collectability, only functionality.
3) En bloc clips are regularly available for $1-$2 each and you should never pay more than that for them, regardless of how "rare" a seller wants to make them sound.
4) Get into reloading, it is the only way to properly feed a Garand, as commercial ammo is very hard on the operating rod and is very expensive. I am currently reloading for around $0.60/round where cheap commercial ammo is $1+/round.
5) Brownell's and Creedmore Sports in the US both stock many Garand parts and will ship most of them north. I bought a Schuster Gas Plug, National Match sights and some 5 round en bloc clips (for hunting and service rifle shoots) from Creedmore Sports last fall with no problems. Service was excellent, shipping was reasonable and fast.
6) Don't bother trying to wipe the silly grin off your face after shooting your Garand for the first time, it is pointless and the grin will last for days afterwards.
Mark