So, audio's ready, so I guess the release will follow soon(which means we probably don't need more testers). But I will be more than happy to hear your reports if you've already played the mod!
You can use the Console to boost the level of your party. This will leave it short of high level items, they can be added by Console or given via an altered area script. See CLUA Console part of the IESDP.
Welcome to PPG! It's great that you've posted here - I do not check BG:EE forums as often. I've sent you a private message(warning: you'll have to have at least five posts on PPG to post private messages, I'm afraid), and we'll add you to the beta forum shortly.
I'm about to start a new playthrough of Baldur's Gate 2 - using bits and pieces of the Big World Project (more following the install order for a medium amount of mods that I like - can post details if you want) and would love to beta-test this mod
On GemRB I could not get the messenger or Kimmuriel to talk to me... On the original BG2, I was able to get going easily enough, now I am doing the first quest. I will need to use the console to level up my beginning party.
You already have it. I've sent you the link by a private message, and I'll ask jcompton to give you access to the beta forum where you'll be able to post your impressions.
(Please note that you can't send private messages until you've got 5 posts here - sorry, it's an antispam measure).