Stay away from the north arm, period end of story. I have researched this, spoken with old timers and local tackle shops and fished all over the north arm, it is a complete waste of time when compared to the results you will get on the south arm or tidal fraser east of New Westminster. I suspect some people get a kick out of sending noobs to the north arm a) to ease pressure on the south arm and other areas and b) to encourage noobs to actually get out on the river, learn the hard way and explore for fishable waters. This has been my experience, and I wasted a most of the pink run looking for action on the north arm. But hey, now I know.
I have caught coho and chum around Patullo Bridge and the cement plant on roe, relatively close to shore. DO get out there and explore spots for yourself to avoid the crowds, but in my opinion any time spent on the north arm looking for salmon is a waste of time.
Also, I would imagine roe is better than a lure, otherwise why would they ban bait? Bring both just in case. Cheers!