ORIGINAL: patternflyer76
I'll get to all that stuff later in build though. Thanks for your concern.....
Knowing you as I do, I'm not the least bit concerned...just wanted to know what your plan was for the engine. That helps explain why you want the wing rib weight equal on each side. What you plan to do is the same as I have already done with my inverted engine Altair except I have not made the plug.
Every builder has his own preferences, and you may want to do this totally yourself, but I will offer the lower cowl piece I already have for your use if you want it to see if it might be suitable for a plug for both our planes, (and others), in the future? It might save you some time, and I could get a lightweight, replacable lower cowl piece in case of damage to the area. I've included pictures for you to look at...both with the cowl on and off.
Duane