Look for a local online sw group. We have one and there is a classifieds section on the website. You can get great deals and get LR that has been cured and already growing all your good stuff on it. I have gotten some of my best pieces from my online group for $1.99/lb I also used Texas Holey rock as a base which is only $1.99/lb. Cheaper than getting the LR at the my LFS for $4.99-$6.99/lb