Yeah Trainerroad and Zwift is my current setup too. I liked the idea of realistic climbs, and bought some on the Tacx App - Ventoux etc. Actually not bad, but in the end, if you're goal oriented, and want to get up those climbs faster then you'll want a serious structured training plan, so Trainerroad wins out in the end. You could run Trainerroad + Tacx App videos or Trainerroad + some other realistic looking climb app. Turn ERG mode off.
That would give you both the structure and feel of climbing and realism of working your gears to meet power targets. Not even a big deal to setup. One screen/device can take ANT+, the other can take bluetooth. Eg. Use your phone for Trainerroad and use your iPad for whatever app you want to ride on visually.
Also worth noting that Zwift CEO says they are toying with the idea of putting in a major climb this winter. We will find out soon, maybe within the next month if they go for it. They do have Watopia Mountain, but it's doable in around half an hour for a lot of people. Zwifters have been requesting something much longer and it might be about to happen. That could be the ultimate training companion to complement your Kickr Climb as lets face it - when Wahoo made the Kickr Climb, it was all about the Zwift experience.
RE: fans. Forget about quiet. Get a massive fan. Something like this:https://www.amazon.co.uk/Oypla-Electric ... ywords=fan
I have a 14 inch fan, and an 18 inch fan. The 14 inch is okay when it's cool outside and all the windows are open, but if it's even remotely warm the 18 inch fan makes a huge difference to how you feel during intervals. This is the single most important part of indoor training. It doesn't have to be a messy sweat fest. I spent years like that - buckets of sweat, feeling like a hot mess. Now I can stay cool and put down more power and it's all to do with temperature regulation.
Remote control would be a bonus but not a huge deal. It's nice to have, but also an extra bit of faff.
You want something to hold your phone, some good stands and things. That Kickr Table is okay, but it keeps the screen far from you, especially if you have the Kickr Climb. Might have to get creative there. Tacx do a nice tablet stand that fits over your front wheel. Just can't see that working on your setup though.