Bottom Bracket ITA thread compatibility
 

Hi, I’m rebuilding a vintage steel Colnago. My idea is a long-term project, opportunistic procurement of components and building it up as they come, while riding the bike straight away. So for now, I want to fit it with components I have available, even though not strictly “accurate” for the type and style.
Currently I’m stuck with a bottom bracket, as the frame BB shell has an ITA thread and I have a FSA Omega cranks with 19mm axle. Would anyone have a suggestion which ITA-threaded BB is compatible with that crankset? Also it’s meant to be temporary so a budget-friendly option would be appreciated.
Thanks