well those arent your only options, but they are definantly a good start.
you would need all you cables, depending on mic/battery box situation to go into the ad20, and a toslink > mini optical cable to go into the jb3
you could always get a set of mini mics/battery box, and a jb3 and then later down the raod (when your budget allows add an ad20 or something similar
the second mics mentioned on that page for sale are highly regarded mini mics, i ran some similar mics to those (audio technica 933s)
you will be wanting omni mics by the way, either mics with switcheable caps or fixed caps, you will definantly want some omni caps for your stealthing
my pleasure to help! we were all newbies once before! and this site helped me out more than anywhere else could have, so you gotta give it back!