Here is the last bit of bmos' Total Encumbrance that needed to be updated. An update will be done in the next few days for the option listed as blank, disabled, or enabled.
This extension should work with 3.5E, PFRPG, and 4E. However, I have only tested it with PFRPG.
Update: Updated for changes to rulesets coin window and now also available on the forge.
Current version is 1.4