Congrats! If you got the NOI, that's good for sure.
Honestly, it might not be quicker (per my experience with HCPS, but perhaps Skilled Trades processing will be quicker), but it's definitely safer. You can't predict if the ITA draws will go to that level. With the Ontario nomination, it's a guaranteed ITA.
If your husband meets all the qualifications for the OINP Skilled Trades stream, go ahead and apply. I think there's a chance it will be done before November. At worst, I think you can just apply for a bridging open work permit or change your status to visitor in Canada, as you have to keep legal status in Canada if you choose to stay while your PR application is being processed.