Caliper question

[TheArf]

Hi calling all ford fans, earlier this year i bought some front hubs off ebay and when they arrived the guy had been kind enough to throw in some discs and caliper carriers. This week i have managed to buy some callipers complete with carriers. Right now comes my question, the original buy had vented discs and when i compare the carriers from the first buy to the second buy the carriers are different widths. Can i put the calipers on the first carriers and fit the vented discs or will i need to buy new discs, solid not vented and are there different widths of calipers

Many thanks

Arfon

Ps. Does this make sense.