Campagnolo Dynatech TT lopro components advice

[Mark south wales]

hiya guys, I've got a stalled build on the above. I don't know what size bb it should be or the width of the axle. I know it should be campy record. but I don't know what set either. so have fitted dia grand components, but still shafted on the chain set.
cheers guys

 

[foz]

What chainset are you using?