More Than One World Problems

Hi everyone! I hope you can help... Currently it's just me and a Tech Admin, and our server has been running for .. 2-3 weeks now. But we have a major problem that we keep having to try and find work-arounds but with every step forward we get thrown 5 steps back... We currently are forced to use GameModeInventories and MultiWorld, because MultiWorld isn't doing gamemode inventories. We have three worlds. Spawn, Creative, and Survival. If there was just a single plugin that changed your gamemode upon entering a different world (No matter how you enter it), it would decrease so much memory usage. It's on my personal machine and I believe my tech admin said I'm using over a Gig, and anymore will cause issues. We have to use Commandblocks and redstone and pressure plates just to transfer members to other worlds. And they can still access other worlds with /spawn and /home (/home is implemented for Survival, but Creative and Survival are in the same Region so we can't cancel /home).

TL;DR
My server is in dire need of a plugin that acts like MultiWorlds but forces an inventory change and game mode change upon entering a creative or survival world, our current set up is not 100% and causes serious memory usage. MyWorlds was sadly broken for me (Only me, my tech admin got it working for everyone but me, don't know why I kept teleporting to random places)

 

multiverse, i say no more.

 

http://dev.bukkit.org/bukkit-plugins/multiverse-core/
This file isn't up to date with the current Minecraft version and when I go into dev builds it doesn't say what version of Minecraft. I already looked at MultiVerse