Conquests holding me hostage

So I realize there is always 1 reason why I never fully complete season journeys: Conquests.

Looks like I'll need to complete 3 conquests total.

Ive completed only 1 (reach gr 75 solo). All the other conquests seem too difficult or way too tedious.

It seems to me the next easiest 2 to complete are:

• reach gr 45 with no set items equipped (no idea how to build for this)

• complete acts 1 - 5 in under 1 hour (not sure if this is very difficult to do or not). Is this easy with a max character? I have LoD blood nova solo push build (speedrunning variant i have as well)

All the other conquests are either hard-core based which im not doing or complete 8 set dungeons. Playing as necro, I obviously can only complete 4. Just not willing to grind a different character to 70.

So how do you guys handle conquests? Which 3 conquests do you recommend i go for that are the most doable? Does anyone else hate the conquest aspect of seasons?

Thanks