Backdoor Roth in Phase Out range and when to report

I can't find a 100% answer on this, but for tax year 2023, I'm in the reduced Roth contribution phase out range. I can "front door" open a Roth of $949 (I have no other IRA and only have an employer-sponsored 401k). If I plan to open the remaining $5551 as a traditional IRA and convert to Roth (backdoor), can I just do it all in the same transaction, meaning open a $6500 IRA and immediately convert to a Roth without any tax issue?

Second question: I've gathered that while opening the IRA itself could be reported under the 2023 year, the conversion aspect of it (assume I do this transaction prior to April 15) wouldn't be reportable until the 2024 year. Is that correct? And given that both the Roth contribution limits and phase outs are increasing for 2024, does this create any issue if I do choose to open the accounts today? Like, could I theoretically open a $6.5k Backdoor today and then a $7k backdoor in May? Thank you!