Or add Thaumic Tinkerer, nerf the Silverwood wand slightly and have the (I don't know how you spell it) wand the top tier (You also don't really need to nerf said wand IMO)
As far as I know, Thaumic Tinkerer doesn't add any type of wands and probably the only useful thing it has is the focus of dislocation (which is extremely powerful as it can move spawners). Unless you're talking about KAMI part of TT that is disabled by default as it adds super OP stuff.
Also I believe the intention is to have to start with GT, as the server is hardmode GT core. And Kirara 1.0 was oriented that way.
Another thing worth testing would be whether it's actually possible to change recipes that require the use of arcane worktable. These recipes are probably registered differently than normal crafting recipes, so I don't think MineTweaker can alter them. However, there are two critical components you have to craft before you can even start with Thaumcraft and since they can be crafted in regular crafting bench, I believe they can be altered with MineTweaker.
That's the iron capped wooden wand and Thaumometer. Therefore I suggest altering those two recipes to require AT LEAST stainless steel (other possibilities would be tungsten, tungstensteel or iridium).
To me it seems as a logical step because TC gives you tools, armor, weapons, farm management, transportation, enchanting and other item processing that you normally get with GT in more advanced era. And once you get there, new options of building open up for you.