Also it might be better to use a dedicated wxlauncher or launcher 5.5g for TBP 3.5 as having a huge list of other mods will likely confuse new players!
Launcher 5.5 is completely dead and wxLauncher is now the legacy way of doing things. Even with other mods, installing things via Knossos is way easier than any other way. Also, showing a bunch of other mods to players is a good thing, since that has the potential to draw more people into playing other mods.
My idea behind 3.5 was to make this an easy thing for people not knowing about FSO. Anyone else can find the necessary files, patches and launchers themselves anyway .
Have you tried Knossos at all? It's by far the easiest way to install and play FSO of any sort, whether it be a TC like TBP or a mod like BP. It's best for both new players and veterans. Just because someone knows how to track down a bunch of files and patches doesn't mean that it's a good experience.
I have not much time on my hand due to Bloodlines, but please give that to me.
The best thing you could do for TBP right now is pause work on Bloodlines and test Raider Wars. I believe the current plan is to release just that campaign initially (since it's the best one) and fix the others as time permits.
I probably already explained it, but I think if there are not any game breaking bugs you should go open beta as fast as possible and let players help with the project. There is no way for the two or three people I assume are working on this right now to playtest all available missions in a reasonable time!
An open beta in Knossos is another way to go but I'd rather get some stuff tested first because unlike SVN, small changes can trigger massive downloads. If we're still in this state in a couple of months, it might be worth considering.
I think if we made a push over the next few weeks to make sure Raider Wars is generally release-worthy (it's already in decent shape from what I could tell from a cursory playthrough) and fixed any other glaring issue (like the empty weapon one, which we do have a fix for and which I should push), releasing the assets plus RW on Knossos might not be a bad idea. I would strongly disagree with putting the other campaigns up there though. Having separate SVN and Knossos repos would be a small inconvenience, but I don't think it would be too bad, considering we probably wouldn't have to make sweeping updates at any one time.