Not bad at all! I saw Dire's Open Block spotlight and knew about The Farlanders before. Now I watched the others. Rougelike Dungeons looks like a great mod to start the adventure. Actual, all together this could be a FTB Adventure mod pack, if they get the permission of the mod creators.
I personally do use them all together as part of a hardcore pack. If you have an idea for making a mod pack, you could always put together the mods you want and test it out. 1.6's vanilla launcher makes this very, very easy to do. If you ever get to the point where you wanted to release the pack to the general public, there are a couple ways to go about it.
1. Obtain permissions from all the authors involved. Set configs to your intended settings. Create two versions, one with all the clientside only mods removed (this is the server version) and one with everything (client version). This is generally the process for modpack maintainers regardless of whether they're on the ATLauncher, the FTB Launcher or something else. Maintaining a public modpack can be a difficult and thankless task.
2. Set configs to your intended settings. Compile a list of links to each mod author's download page and specify the version your config pack uses. Users can download each mod themselves and just drop in your configs. This is what you have to do anyway for mod authors that don't give permission. Mostly it's just a matter of ad revenue, but can also be drama/politics. Don't link directly to a mod's file even if the author isn't currently seeking ad revenue.