I've been lurking around here for awhile, and would like to hopefully get a bit of guidance on my first Eurorack.

My end goal is to create a rack that I can create 'ambient' music with, which I appreciate is quite broad. More specifically, I love the type of music being done by people like r beny (https://rbeny.bandcamp.com/) and ann annie do (https://annannie.bandcamp.com/).

I'd like to be able to create sounds that I can also combine with my Cello (not actually through the modular) and also using some interesting field recordings. I've put together a starter rack, with some of the modules that have caught my eyes, but was hoping for a few recommendations. I've linked my rank below.

Firstly, due to cash restraints I'm likely to just get a few modules to begin with. I was thinking Plaits, Rings, Maths and Veils would be a good start. Would that be enough to play around with and get a feel for what else I may want to add?

Secondly, I'm a bit unsure on the importance of sequencers. I understand I can use something outside of the rack to do this, but without an external sequencer of some sort, is it possible to do this using other utility modules or through patching in a specific way?

Finally, is there anything specific I've missed or any further recommendations people could make. I do have some guitar delay, reverb and loop pedals that I can push the rack through, but it's also my understanding I probably need a module to convert the signals to pass through these?

Rack:
https://cdn.modulargrid.net/img/racks/modulargrid_1108762.jpg