Building on (and agreeing with) what others have said…
1) Get a MI Veils (V2) for a VCA. There is one left in stock at Signal Sounds at this very moment. Do not hesitate, buy it now! Do not think twice, don’t think about import fees if you do not live in the UK. This is a rare and disappearing opportunity, don’t pass it up!
It is 4 VCA’s in 10hp with offset, a huge amount of gain to bring line levels to Modular levels, is DC coupled so can handle both audio and CV. It can sum/ mix and runs 0v to 8v (rather than just 0v to 5v) which is important for some modules (Verbos for example). Again, all in 10hp. It will hold its value in the future.
2) Xaoc Zadar is great for envelopes. It can be dialed up quickly and the envelopes range from simple to more complex and can be attenuated within the module itself. The four separate envelopes match up with the four VCA’s in Veils. All in 10hp.
Good luck!