Spreeny you maybe best googling the recipe for steak and kidney puds, as not many people make these any more,and just half the recipe as most are for serving four people,you could use rump steak but a tight expensive methinks, me personally would get a a good stewing steak@kidney and cook it off first then put in basin with a suet base and lid,as for size of basin you will just have to just look around for a smaller one, or ask the shop asst,and if all else fails, go out and buy a steak and kidney pud from the supermarket!!!!