Here is my Guci Pelican 1700 set up for a DD railed Celcius CTW M4 with spots for Eotech 551, Acog, 3 cylinders, Beretta M9 plus 3 mags, Madbull crono and 10 mags.
Got the fabric for $3 so I couldn't resist....lol...there is gold fleck woven into it to add some bling!
I think for the 2 gun set up I am going to go for a longer, deeper case and put the pistol at the end...all mags in the middle and the guns opposed at the top and bottom. Should be room I hope.....