Hmm I haven't seen any Truggy Savages but I'll be sure to give them a look. Reason why I want to make my own shock towers is also for upper arm link mounts so I can adjust the roll center if needed. I saw some Platinum RC lower COG Carbon Fiber shock towers that look pretty nice, but I'd only get them if I decide to not go for my own.
And as for the spur gear hole, that's a good idea. I was thinking about that but I figured that since nitros and lot of the conversions out there have a hole there it didn't matter, but it's probably a good idea. My dad was out with his Jammin today and sand got in through that hole and ruined his pinion. I think I'm going to take out that hole, thanks.