More progress!
I busted open all the plastic shells on the AC power supplies. This took a while and was a pain, but it definitely allows for more flexibility, cooler operation, and lighter weight.
Next up, I desoldered the 2 pin AC plug from each board, and daisy chained them with some new wire. The last one has a new wire to reconnect the AC plug, but it'll be mounted in the new enclosure.
I connected the AC supplies to the DC-DC converters (for charging).
Now, time for some assembly! The side panels went on, and the AC power supplies were put into their mounting slots. Hey, its finally looking like something, yay.
Then, I connected the DC-DC outputs to the battery pack.
This pretty much takes care of the charging side of things besides mounting the AC plug. I haven't figured this out quite yet.