Trampolining is wicked for coordination.
Have you checked out riding for the disabled? In many areas they have council subsidised blocks of lessons and very experienced teachers, (which I think makes such a difference to a child's confidence and so progress).
Exercise doesn't HAVE to be hideous sporty activities that make you feel stupid. DS loathes organised sports mostly but does still get his daily 60 mins of cardio vascular activity despite that. Think outside the box.
Gardening is good for general fitness. Get her to create her own veggie patch from scratch. My son's OT thinks all dyspraxic kids should have their own tattie patch for the digging lol!
For general fitness - walking is much underated. The woodland trust does brilliant worksheets for all ages which you can take out on walks with you to help you identify different plants/bugs etc. A brisk 30 min walk in teresting surroundings daily is free excercise. Add in another 30 mins in the swing park on the way home from school and you've got the 60 mins recc'd daily excercise down. When the weather warms up go hiking at weekends.
Walking has always been my mother's lifelong exercise of choice. As a result at 76 she's fitter than most of her contemporaries. Not to boast but I have great legs as a result of all the walking I did as a kid, (my face is another matter).
We have a dog and being so forced to take it for a walk and play with it 2x a day means DS always gets some sort of daily excercise rain, wind or snow. I'm not sporty and loathe cold weather so having a dog keeps me motivated in a way only a gun to my head would otherwise.
Some areas run yoga classes for SN kids. Deffo not for everyone but yoga does work on core spinal strength and makes you aware of your body in space iykwim. DS & I hated it when we tried it but as everyone is different it's worth trying perhaps.
Would she enjoy aqua aerobics at all? lots of non-sporty types love these classes if they enjoy the music. A good freestyle boogie round the living room such that she works up a sweat is worth a few brownie points too.
DS got a Wii + fit board & sports game for Xmas off ebay. It's fun and a way of helping his co-ordination outside of his daily 30 mins therapy regime iyswim. Not intended as a replacement for a proper programme of excercise/therapy but better for him I hope than other computer type games on a rainy afternoon when I want an electronic babysitter just so as i can get some housework done or cook dinner.