I had made a separate book for solving the papers of P1 (Pure Mathematics 1), which I can scan if possible and give it to you. Since, all the papers contain the same content, one or two solved papers will be enough to aid you. I can give this once my A2 is completed, i.e. after 16th of November.
As for M1, I am giving it in this session and for which I haven't made a practice book for solving papers. Mechanics 1 is easy and mark schemes can easily help you.