Need o2 help

[tb8125]

I just completed my 5.3l swap. I bought hp tuner and removed vat and changed my injector size and deleted most of the emissions stuff and some other random things... I can post my changes if it will help any... My situation is I don't know anything about tuning and what to do to get my truck to run correct.... I am taking it to a real to tuner but I need to have as much in place as possible to get it tuned...
Do I need to install o2 sensor to get it tuned
What's need for a sd tune (right not I have the stock maf hooked up)
Should I get wide band if so what works best with hp tuner
The truck is procharged with ls6 cam and 8.1 marine injectors complete stock rebuild




Any help would work

https://static1.pt-content.com/images/pt/2013/07/null_zps0f894463-1.jpg

[Schwartz Performance]

Sd tunes don't need the maf. You'll need both O2s hooked up, and the tuner will need one wideband in the exhaust for tuning and reading AF ratio. All reputable tuners will have a wideband sensor and meter so no need to worry about that part. But if you could put another sensor bung behind the header O2s that'll work for their wideband.

[tb8125]

Thank you sir