Here's a pretty thorough and organized checklist
In replace of a water bottle, you can get a camelbak, or there's also hyrdrapaks (camelbaks are generally only 72 oz or highter, hydrapaks are smaller), which are a flexible water bladder with a long tube and a bite valve. The bite valve keeps the water from escaping unless you bite on the mouthpiece
You can have the tube running from your backpack over your shoulder and drink by putting the straw through the front of your mouth, or if you have room, have the tube go inside your suit and kind of rest next to your mouth, so you just have to tilt your head a bit and grab the mouthpiece
For a spray, if you can make your own, do that, because febreeze breaks down materials a bit faster than normal. Don't take my word on this, but I think it's 2 parts cleaning alcohol, two parts water, and one part essential oil to make it smell good. But there's guides on youtube for mixing them, the one I use is done by Pocari Roo
You probably don't need it -with you-, but if you go to a headless lounge or something and want to do a quick clean of your suit, a small spray bottle works nice!
You probably don't need to bring glue, unless it's a small tube. A needle can hold up pretty well until you get back to wherever you're staying. And if you're rushing or anything like that, you could -possibly- glue it wrong and that''d suck. A thimble is a good idea if you just want to bring a needle and thread, so you can push through whatever material you need to.
Generally for me (my... two times suiting somewhere
) I have a modified harness backpack with a hydrapak water bottle, a sewing kit, one-two snacks, one of those water spray fans, and a small comb. I'll bring a thing of cleaning spray when I go to a con
I'll see if I can post a picture sometime later