Hello,
I've joined
WH40k early this year and due to corona crisis never had chance to play with someone. Meanwhile I'm slowly collecting and painting my Thousand Sons army.
So far I have un/painted 10 Rubric Marines, 15 cultists, 10 Tzangoors, 2+1disc exalted sorcerers, Ahriman/disc, 5 Terminators, Daemon prince and Rhino.
With all my unit-settings it's around 1366 points army.
My "dream" is to have 2-3k pts army, but I'd like to mix one other
CSM army into it (excluding daemons).
Can I do it ? Will I suffer some "terrible" penalties because of multiple detachments in 9th ed ?
Main reason is to have/paint different units, rather than 2-3x Daemon princes or 2 units of Rubric Marines, etc.
I don't want to have best army, I just want to have fun, but also chance to win sometimes

,
avoiding terrible soup which doesn't cooperate.
My visions are
if Black Legion -> I must have Abaddon
if Death Guard -> I want to avoid poxwalkers and nurglings (not really fan of models).
Some of my models could be transfers to different army like Cultists, one exalted sorcerer looks like "ordinary sorcerer" and Daemon prince is still on sprues.
Thank you