Moving into Ltd Company - advance set up advice

E11btt

Hi,
I am becoming self employed. I have already registered my limited company and applied for my UTR.
I plan to become active sometime in March 2023. I have set up a few things in advance like CV, email, company registration and have lined up business bank account, accountancy support and PAYE registration for later - but have not yet activated these.
Would it be OK to activate those last few items now, or wait a bit longer, as I am concerned it may kick start filing with HMRC or it may start looking strange that there is no activity for a couple of months and especially PAYE how does it work if this is activated sooner - I am currently still on payroll with my current company but my official date of leave is 17th March 2023. Will it confuse things with HMRC if I activate PAYE under limited company director role?

I want to take advantage of the additional couple of months I have but I dont want to jump the gun if it causes confusion. And while we are at it, if there are any other items I have missed that I could do in advance (only financial wise). Many thanks in advance for the great support this forum provides.