I am thinking of buying universal fighting engine's pro version, which costs 349 usd (at least I'm assuming it's usd, it just has the dollar icon), translating that into my country's currency it'd be 1470 something, which is quite a lot, so I would like to ask a few things before I decide whether or not to start saving up for this. Some of these might not have a clear answer, but really all I want is general info.
Are special intro interactions (like ryu and ken fist bumping, for example) possible to do?
Can you set special reaction sprites for throws? (I watched the throw tutorial, but it's 3d and only tells you how to set up a general throw reaction for the entire cast, at least from what I can tell, as opposed to special frames being used for all characters)
Can you create raging demon styled attacks? (screen being covered by something, a few hit sounds and effects, before showing the aftermath of the attack)
Can GUI have particle effects? (for example having some blood spill out when your health bar depletes)
Are color palettes possible? (I'm working with aseprite, so I know I could create separate palettes as separate files then making them choosable via new buttons on the character select screen, but I don't know how practical that is, both time wise and space wise)
Can you add special character quirks and movement options (for example, a character's airdash making them jump up on the ceiling rather than being a normal dash or a character not having access to certain moves before they reach a certain health threshold) Basically how much freedom does the system allow?
And last, but not least, is there any way to exclude certain perks from your purchase? (my fighting game project will be entirely 2d, so for both space reasons and cost saving reasons I wouldn't need the 3d compatibility perk, I can understand if that wouldn't subtract from the price, but I would still like to be able to remove this kinda bloat I don't need to have)

Sorry if it's too many questions or if there's a better place to ask them, I've been dreading having to code my fighting game for so long and finding ufe was like finding an oasis in a desert and, continuing the desert analogy, now I want to make sure it isn't a mirage.

(also, small last question, from what I can tell some of the things you can't normally do with ufe can be done with its source version and some tinkering, so, would saving up even more in order to buy the source version be more worth it?)