heeey nice seeing you here!
For ours, we ended up purchasing an overhead gantry lift specifically for the indexer. We use the smaller 160mm version which is smaller than yours, but it still weighs a few hundred pounds. It's not impossible to lift, but is very awkward to get in and out of the machine.
I don't have any pictures of the actual rig we have (can get some tomorrow), but this is what we bought Telescoping Gantry Crane - 1 Ton
I think you'll find that figuring a seemingly-elaborate method to load the indexer isn't so bad since you'll be using vices more often, and you can coordinate uses of the indexer so you're not pulling it in and out of the machine all the time. That is unless you plan to do a LOT of work with the indexer....
I know there's lot of other guys here that have integrated systems set up to move the indexers out of the way, though most of the time those are for 4th axis platters that don't present such a space issue....I'd love to hear from anybody else.