Sounds good, just follow what I said to do your best with the O2. Once you have a CO2 setup if you ever decide to do the kegging route it will grow easier to do closed transfers, but its absolutely not mandatory.
As for twist tops, I don't use them, but I think some people here may. I'd stay away from the clear bottles for beer and especially IPAs as light skunks beer, not temps so brown bottles will be your best bet.
As for getting hops to sink, you need to cold crash your beer. If you aren't bottling until Wed, try to get the temp down and the hops should start sinking. That being said, do a little research on cold crashing so you don't suck your star san into your brew as it will create a vacuum and could create suck back. I have had a ton of floating hops that didn't sink in brews in the past. You can rack around them as they will be either floating on top or sunk to the bottom. Put your siphon in the middle and you should be transferring mostly clean beer to the bottling bucket. And if a couple floaties make their way in, don't worry, it won't mess up the batch.