There is a Tulip Inn two stops down on the metro that does a reasonable priced family room , we went at easter for three nights plus crossing and disney tickets for £530 I can't remeber the name of the town but will look it up
We stayed at a comfort inn, about 50 euros a night for a room, about 10mins drive from Disney in a place called Lagney. Room basic but sufficient as spent all the time at disney and breakfast nice. If you eat at disney village, then King Ludwig's castle is nice food and do kids meal free for every adult meal. For me, dh dd and ds was 58 euros two courses. Planet hollywood about middle of the range and rainforest cafe and disney cafe most expensive. (about 100 euros for us ) Hope this helps.
There are a lot of hotels one and two train stops away from DLP. The station at DLP is right beside the entrance.
Have you priced the disney hotels they have different budget ones and depending when you go you can get good deals.
You could stay in Paris if you want to do a bit of sightseeing and maybe spend one day and evening in DLP. I you get a one day/park pass you can use it in the other park in the evening so choose one of the days they open later.
Tulip Inn Bussy St Georges (search on google and you will find the link) excellent value and lots of family rooms. We actually booked it all through Thomas Cook who organised suttle crossing as well as tickets and B & B I couldn't do it cheaper myself.
My cleaner is keen to take her two children to disneyland paris for the weekend but we've spent ages trying to find a cheap deal for them and failing.
She had thought about camping (they have their own tent) but they won't be driving.