Generally speaking, you can be sponsored under inland spousal sponsorship class if you are out of status because you overstayed for some reason. (Please note there are always exceptions and exceptions to exceptions in immigration laws.) This is not mentioned explicitly on CIC website, but there is a public policy in their manuals- IP 8 talkis about this.
If you meet all the other requirements under this category, You are eligible to apply at the same time for an open work permit under this category. You can not work though before you are told so. However this is a pilot program renewed on the yearly basis. Info shows currently this project will expire dec 21 2016. Given the intent of the introduction of the project in the first place, my understanding is this project may well be carried on. So keep an eye on CIC website on the updates. Not allowed to post the link for open work permit application under this category, but you can search with key words of "international mobility program and open work permit" to get the info.
One thing important is: don't leave Canada while you are waiting for your temporary status. It is also not advisable to leave Canada if you inland spousal application is in process, because you could be denied of entry and inland spousal sponsorship, by law, requires you to co-habitat with the sponsor.
Good luck!
Ivory