Must-have BG2EE 2.x mods for first playthrough?

I have a BG1 Cleric/Ranger, and I got through the first few chapters of BG2 EE 1.x some years ago before other things came up, and now BG2EE 2.x is out, so I'm just going to start over by re-importing from BG1. I probably only have time for one play-through, and I'd like to get a list of essential mods that don't change the vanilla flavor of the game, but just fix whatever remaining glitches there are after the latest 2.3 patch, and improve the fidelity of the game to the AD&D rules.

I'm interested in the Ascension mod made for the original BG2 ToB, since it sounds like a "director's cut" of ToB that makes it the climactic challenge it should have been in the first place, but others have said it should be considered an arbitrary mod just like any other and dilutes the feel of the original game. What is the current thoughts on that mod?

I've also read people recommending Unfinished Business.

I'm playing BG2 because it is considered an all-time classic, so I'm not looking for new fan-generated content, I just want the game to be "completely finished" with all the bugs fixed, open loops closed, plot threads nicely tied up, etc. Are there a few other mods that have a consensus in this forum as being good tweaks that polish the vanilla game without changing the core experience for a first-time playthrough?

I have read that for improved fidelity to the pencil-and-paper version of the game, they recommend Atweaks and Rogue Rebalancing -- does the latter give access to scrolls like the PnP game? I've also seen people recommending the Item Revisions and Spell Revisions mods.