From what I remember reading, there are a few different parts on the chassis for CBO's and FBO's... I believe cap values were different on a couple of caps.
I used to have the cap lists on my computer... but I can't find it now. I do believe some of the values were different though. When it doubt, it's always best to just order a pre-made kit from a reliable source. I usually piece my own kits together from Mouser.com, but it takes time and you only save a couple of bucks in the long run (unless you order 3-4 at a time).