Yesterday I got terminal caps installed. They are Blue Sea 4009 cable caps.
https://www.ebay.com/itm/BLUE-SEA-40...oAAOSwuTxWBwvB
Using regular scissors I cut the back ends off to help them fit better. They're a great fit on the terminals with the spacers, tighter on the ones without. It may be worth it to add spacers to the regular terminals to make these fit better.