BigBlock RB length rod with .990" small end

Hey guys, On the cheap, I'm wondering if anyone here has a "RB" length connecting rod of any sort, that uses a '990" pin you could sell me. I'd really like to have one around the shop for mock-up to help me figure on deck heights and valve to piston clearances. That being said, I only need it for mock up..... It could possibly be damaged and unusable and still suit my purposes, as long as it's not a pretzel or one of those two-piece rods lol. PM me if you have suitable doorstop for me. TIA, Lefty71