Thanks Vanders9. Clegg says the LD won't join a coalition that also includes the UKIP or SNP, but earlier I read that he may lose his seat, meaning new LD leadership. Farage has said UKIP would, then wouldn't, and more recently that it might, in order to prevent Labour and SNP from forming a ruling coalition.
Issue by issue arrangements are certainly possible, but a UKIP Conservative tie in is, I think, unlikely.