Yeah, it'll be fine for a while. You could check out the CA reactor build by @ca1ore . He built a very large ca reactor that's feeding a large, SPS-packed system... and soon a larger, more packed system (yes?). :0) Guessing you could build something similar for less than a large used reactor, but you never know. At the minimum, it is pretty rewarding to build your own reactor and have it work well.