If your FG is anything close to normal, you'll likely have a decent IPA on your hands that requires no further messing around.
I'd just bottle it and drink it. Dry hop it for a bit first if you really want to, but I wouldn't go adding spices, nuts, and flavours to it. Does it taste gross already from the hydrometer samples? Maybe you mashed higher than you think...
Then try to figure out what happened and try it again - maybe check your thermometer calibration, mash at 152-154 for an hour, and batch sparge all you need to do is stir the crap out of it, and drain immediately - no need to let it sit for 30 minutes.