Well to play "GTA V" you a 4.70 CFW Will let you play it. but to Actually go online you need to Make sure that you,re CID(Console ID) is not banned on PSN or on GTA V it self. too prevent Getting Banned on PSN, use as you said PSN Patch + PSNinja v4. and to Lower/Slim the chances of Getting banned while modding GTA V make sure you Don't Set your Stats on the account too high + also Spoof your CID (Console ID) to 32x0 with CCAPI made by FM|T Enstone, which also enable's you to RTM on CEX as well as DEX.
Hope i managed too help you. ~SwarMzY @NGU~