Yeah, I just tried the portals again. Using the vanilla installation, I go into the nether portal and the animation appear but I can't go to the nether. Same thing with the end portal, I just fall through it.
I'm fairly good with commands and command blocks... I've started several successful servers that I've only stopped because I've ran out of time. I'm also good with worldedit, if that matters.
I mean, I'd be willing to join... I'm not too good at datapacks but I'm pretty good at making skins and half decent at making texture packs. I'm also pretty good at building maps if that's needed