So, a while back I finished a printer friendly version of the expanded character sheet (found here), and today I finally finished a fillable version of it! You can find it here:
Printer Friendly Fillable Expanded Character Sheet
It should do a bit of math for you, tracking ability score mods, automatically calculating proficiency, and adding up your bulk for the inventory. I tired to make it as clean as possible and some boxes have drop down menus or scroll bars to allow for more customization or room.
If you notice any errors please leave a comment, I've been staring at it for a few weeks so I'm sure something slipped past me.
I just downloaded the sheet to use and the first thing I noticed was that in the AC calculation if you're Dex Mod is Higher than you Dex Cap for the Armor you are wearing it doesn't take the Cap into consideration, unless there's a way to express 0 for the sheet that I'm unaware of.
(I made a Str based Rogue and put him in Full-Plate. He has a 12 Dex and it's still adding his Dex to AC even though Full-Plate Caps Dex to 0.)Edit: Just did some experimentation and it works with a Cap of 1 or 2 but not a Cap of 0.