Start gluing! When in doubt grab a beer and forge ahead, if still in doubt grab another beer! Inventory? If you come up short call Sig and relax for a couple of days or goto the LHS for wood. One mod you might want to really consider is building a flat wing instead of one having dihedral. I built my LT40 with 1/2" and wish I'd just glued it flat. Flies awesome. Dubro landing gear is a nice upgrade to. Doesn't bend out from those hard landings. Don't worry about reinforcing the tail like many on here will mention. Just use epoxy and it will be fine. Use wood glue on the doublers. Fuel proof your tank area before gluing in the tank floor. If you want more advise just ask. This is an easy kit to build! Most of all have fun and enjoy it. Small mistakes won't stop this plane from flying great!