for fun not sure if you saw this gas grill I adapted to the IGT ?
http://www.expeditionportal.com/forum/threads/77054-Snow-Peak-IGT-tweaks-a-gas-grill-amp-more
but my main snow peak stuff I am still figuring out a bit
so far in a pelican 1620
I have my gas grill for the IGT and my single BBQ box my Baja Burner and the stainless 1/2 space tray inserts
in some ways for some parts like the grill etc.. I think a pelican is a bit overkill ? since its tough stuff and a bit of water wont really hurt it ? but I do like the idea if its dropped it should be more protected ?
so I am also thinking of trying some padded cases like cheap cooler cases you can get at stores for cold stuff and put each item in a case and then put those where ever they fit in the truck to fill in areas in between things etc.. ?
the upside to the later is if its a bit dirty greasy after camping no biggy the same case gets a bit dirty ? and they are cheap
my main pelican I have divider cases and also for some things use those cheap blue sleeping pads cut up to pad things that way if they get messed up they are cheap to replace
which is the route for my 1620 box

keep the cooking stuff separate so the greasy food smells might not mess up other things
but the idea of one box for both my grills and the burner and trays and seen if I can fit in the griddle seems like a good thing
I will get some pics in a few days

and post em up