first ones an elite rep / watercooled cag. they have a blata rep motor in the frame of a half fairing cag. very light and very breakable
second one is a RSR rep with a gp3 style reverse motor in them. i got my one from that same guy. there pretty quick out of the box! must be said i never got mine going in the end. it probably would have been fine if i didnt strip it apart to make it go better every 10 seconds :P
out of the two the gp3 rep is probably the better bike but its not worth the money even though it has alot of nice parts on it.
i wouldnt mind one of those elite reps if you can get it around $300. looks heaps easy to work on, basic and heaps of room for improvement

and they look pretty cool. just hope they dont break in two.