[RC-Monster Mike]

The problem with the LiPos on the Find design site is size. The size isn't listed and you want to make sure they will fit and be able to be porotected. They are boat specialists, so the batteries may be configured to fit their boats and not necessarily an e-maxx. The other packs are fine, but in the G-maxx chassis, I would stick with packs that are flat (no hump pack needed, as the chassis can fit 8 cells flat per side).
LiPos are expensive and have their disadvantages, but the power to weight ratio makes for very impressive performance. I use the Astroflight charger on my Lipos. For shocks, the Proline shocks are among the best. the traxxas big bores are my favorite lower cost shocks, although they do need stiffer springs.