They might or they will source it out from other manufacturers that will allow them to pay in whatever currency they want to. But I guess since their alliance with BRICS is at hand and has been vulgar, are they going to purchase it from any of those participating countries that are also into arms manufacturing?
Weapon system is not that you ditch your Chrysler and buy a Toyota. There is tooling, replacement parts, ammunition sizes, stocked and needed.
I think Saudi Arabia and much of the east had their experience with Russian weaponry. Going Chinese?
So far only a few countries were allowed to buy. One is Venezuela. (No money for medicines, but weaponry?)
https://chinapower.csis.org/china-global-arms-trade/ I see, if they've got more experience doing that with Russia then they might just wait until they won't need to produce for themselves anymore but for the sales that they might do. Other than that, there might be some other manufacturers that they're going to ask for it or they will be offered to. Knowing that it is going to be Saudi Arabia, they'll surely want to do business with them. They prolly don't need to find one but the manufacturers are the ones that are going to get close to them and do business whatever they are in need of and lack of. Anyway, there's so much things that are happening globally, only the rich are the ones that are looking to expand and do a lot on their country because they've got a lot of funds.