Inventory GUI's from Mods conflicting... advice?

[Twisterlj]

I have 2 custom mod packs, one high tech, and one low tech/high adventure. I was working on updating our High Tech mod pack and ran into this interesting problem. We have both GalactiCraft and Tinkers Construct mods in this pack. GalactiCraft adds it's own inventory GUI so that you can equip O2 gear for space travel. TConstruct, in it's latest update adds tabs to the inventory GUI, so you can switch screens to add their additional items, like heart canisters. There was no conflict before TConstruct added the new GUI interface, but now when I launch, the GUI shows the modified GUI for GalactiCraft, but not for TConstruct.

I had thought about renaming so the mods would load in a different order, but since we are still on MC 1.5.2 until all of the mods update, GalactiCraft is a core mod. Apparently in 1.6.2 and later GalactiCraft will have a core mod component, but GalactiCraft will be a Mod in the mods folder. At that point, I might be able to see a fix for this... maybe.

I started looking into this because I was looking at the possibility of adding Aether II, and it also has the same issue. It generates it's own custom inventory GUI.

Anyone have any ideas as to how to deal with these conflicting custom inventory GUI's?