They both do primary and secondary, some pupils go there all the way through and some go there and then to mainstream for secondary and vice versa and they are geared towards children where mainstream's really not an option, but should still be able to deliver the curriculum and qualifications.
They might not be suitable, but definitely worth a look.
Aye, I'm in West Lothian, I have a 15 yr old with Asperger's and I trained as a teacher (didn't go on to teach though as I found it too hard with balancing my children and the workload), which is how I know some of the schools, lol, some of them because I know other parents...
Signpost are well worth talking to, just in general to be honest, lol - especially if you've just had a load of information dumped on you with no warning.
I know one of Alison Raeburn's roles is to provide advocacy, so if requested she can attend meetings with you, to help you, that is in theory though, because I'm not sure how much notice she needs - but there's also someone else that does that too. So if you think you'd find that helpful, ask, there's nothing worse than attending meetings and being given so much information that you can't use any of it because it doesn't sink in, especially when it's all new to you.
Good luck