MunMan04

I recently downloaded OPT Spaceplane Parts, and wanted to make a 2.5m SSTO. However, I can find no updated mods that include 2.5m bays. I am aware that Modular Rocket Systems has these parts, but they are not stock-alike enough to fit my needs. If anyone knows of a mod that adds stock-alike 1.25m and 2.5m cargo bays, please reply!