You definitely need a new guide. As everyone else has noted, as long as your contracts total more than 150 (and one meets the minimum buy-in level) then you will have Membership Extras (unless you sell a contract where you'd fall below 150).
The welcome home benefit TECHNICALLY in the documents is only for those on a trip; HOWEVER, guides have been giving it to many, many people (including myself) who have a trip booked far into the future (12/16/23 for me). It's $1000 for new members, $1500 for add-on members. This is why you would have $1000 (anyone who says it is $1500 was an add-on, guaranteed, it's in the documents on the incentives). If your guide won't give it to you because you're not on a trip, get a new guide.
August UY will most likely require approval and should exist, but is not guaranteed. That said, if you're doing Magical Beginnings, it would seem to be a bad decision to wait until after 8/1 (you have stated buying in September) to complete a contract. That is because prior to 7/27 (they need about 4 days for the sell back), you would sell back your 2022 AUG UY points. After that point, you'd sell back 2023. Why does this matter? You will pay 2023 dues from the date of your contract. Waiting until September means you pay approximately 4 months of dues rather than 5. The savings are a little over $100, but you would get one less year of points on the contract. You could rent out those 200 points for, worst case I would think, roughly $18-20 per point and net another $3500-4000 or you could bank them for your December 2024 trip.
Finally, I think you've posted this on a number of DVC Facebook groups as well. I see a lot of misinformation in those groups often. I think you'll find much better information here. I would be wary of contradictory information from Facebook users (or at least validate it here).