I think the first step is to identify the core purpose of the campaign.
From scanning this thread:
Some people want to raise awareness of the very real problems caused by lack of meaningful support, erosion of rights, reduction/removal of resource and funding etc.
Others want it to be an about raising awareness that people with diabilities are exactly that, people who happen to have one or more disabilities, but are living, breathing, flesh and blood human beings who deserve no less acceptance/equality/understanding than every other living being on this planet.
Some want it to be focus on children who have disabilities, others would prefer to include people of all ages.
For me personally, obviously I would love people to start seeing past the negative propaganda and daily mail type sensationalisation (is that a word?) of disability and the issues that surround it. For them to really listen, see and understand how hard the reality is, not only for the person who has the/a disability, but also for their families and carers - BUT - I think that is a tall order and will only come from a starting point, where people truly accept disability of a fact of life and not something to be marginalised, feared or hated.
Perhaps we should see this not as 'the' campaign, but as a potential starting point. We could start with something along the lines of the 'we/I am/are here/this is me/us' with the aim of getting people to just stop and think, challenge their own and each others' perceptions of disability and hopefully start to change their attitudes.
Not sure if MNHQ would be up for it, but could we not see it as the drop of ice that starts the snowball? Aiming to build a layer each time, developing the point and raising awareness of the wider issues and how prejudice and discrimination is allowing the rights of people with disabilities to be at best eroded - at worst completely trampled over and destroyed.
In my experience, campaigns from organisations, such as, for example MENCAP, whose role is purely to support people with disabilities, are easy for people to gloss over and ignore, they are fringe, marginal, just like the people they are trying to represent. MN however is a powerful and wide reaching engine, which really can make a difference, by getting people who would normally walk past a billboard or make a cup of tea while the advert is on tv to actually sit up an take notice.
I could be rambling complete nonsense here, as I am not doing too well at the moment with my own, as yet undx, hidden disabilities, but what I can see from reading this thread is that we all want and need a voice, we all care passionately about the fact that people with disabilities need a public face and voice that is real and for want of a better word - normalised (not phrased that well, but I hope you know what I mean) in order for people who wouldn't ordinarily bother to actually stop, listen and think. Yes we have different ideas about what the campaign could mean to us personally, but surely that's something we can work out together?
We need a plan and and understanding of how far the campaign can go - whether it's just going to be a short one-off thing - or if it has the potential to go further and champion some of the very real, serious and scary things that are currently happening in relation to disability in the current climate.