Theres a few Hardbodys and a few early Pathys on here so its not too much clutter. There are even build threads with non Nissan/Datsuns, so youre more than welcome to be here. Looking over your second link with the rendering, I remember a member who does artwork like that, but I cant recall his name right away... Fisch is the one who did the drawing in the banner (as well as some other nice work), but there was someone who was doing the simpler designs.
Ill try to look around to remember who he was.
Edit: there is this guy... http://community.ratsun.net/topic/43638-the-bre-510-is-done/