The Palette is rock solid like all Intellijel cases, but it is expensive in terms of buck per hp.
When it comes to hands-on modulation, the Bastl wouldn't be my first choice, not even second or third. I'm no Bastl fan, tbh, so I'm biased. You should also take a look at the Intellijel Planar 2, the Bela Gliss, Intellijel Quadrax / QX, Rossum Mob Of Emus and Make Noise Maths 2. The Ryk Envy Machine comes to mind as well.
The Palette will be too small soon, anyway. :)


Ah, thanks. Well, if you're really willing to sell the Terrarium, then the Oneiroi might be a good replacement (although a totally different beast with another sonic palette). For ambient, it's a nice choice for sure, and the 352 should bring in enough money to continue on that way.


An Intellijel Tangrams might come in handy.


Can you show the "rest" of your system?


Yeah, the learning curve can be a bit steep in the beginning. That said, this is a really weird rack. ;)
Power consumption shouldn't be a problem, the Intellijel 4U Palette provides up to 1.2 A per rail.
What you need depends entirely on what you want. You don't need a VCA if there's no need for amplitude modulation. But you might want something like this: https://intellijel.com/shop/eurorack/1u/stereo-line-out-1u/ to connect to your 6.3 output jack and reach the outside world. Be careful - modular level is not line level! Modular level is quite a bit hotter!