In my knowledge there is no way. But if you want to mass invite your friends list you can try firefox addon which allow you to invite all at once.
Page invite, dude .How do you manually invite 10K people to like a post in the first place?
Yes, as I thought .
Any info about the daily limit ?
No Facebook has a daily invite limit.I have tried it.In my case 200-300 people a day
i made and shared here a tool that invites your all friends to your own group or a fan page. i may share with you if you want...