I just read your entire thread over again. Congratulations on your progress and on a most interesting looking bot.
I can offer you no advice, just encouragement. You have already learned the most important lesson: There are truely wonderful people here, both at Lynxmotion itself and as members of the forum from all over the world. The amount of expertise they freeely offer is, as you have noted, amazing. I have learned volumes just by reading every thread.
Don't know if this will make you feel better or worse, but I detect that you are very much like me: You learn and progress very conservatively always wanting to know as much as possible about the probable outcome of an action before taking it. (I figure I have plenty of time to go slowly but not pleny of money to keep replacing parts. Sorry Robot Dude.
) You are taking the best approach, and it has obviously been working for you.
Looking forward to videos of your final success. Now you really should do something about getting your radiator down off the wall.