To be honest I don't think plus will do this. Plusnet hosting is fine as a added extra in the package but not the most reliable in the world. You would probably be better off with a seperate hosting company. Liam one of the moderators here does hosting at £10 each month see here many other people around the forums do as well.
n.b. the link i have provided you with is to a seperate site, purely because I know precisley the location of the link there.