Since my takedown, I wipe n cleanse with good olde' toilet paper; no special cleansing routine, procedure or bidet.
Never had the dreaded butt burn either.
I used wet wipes to cleanse initially, only because the hospital suggested to and now I keep a pack to hand but I rarely use them and can do without unless I've had an accident or leakage.
On occasions, I do endure a rather annoying anal itch, especially during my first year since takedown and alleviated by the application of ilex paste.
Although I dont use wet wipes to cleanse after a BM; it's best to always have both the wet wipes and ilex and not need them, rather than need them and not have it.
I wouldn't worry about a bidet, wait until after your takedown and for the issues to arise that may require the use of a bidet.