Hello all. Newbie here.

Rebuilding a 90’s Bianchi Campione (can not post photos yet per forum rules...).

Details - All Campagnolo (Mirage/Avanti). 8sp/Double Mirage Crank. 111/68 English (1.37/24) BB.

Question - Purchased a Mirage triple crank (son has the identical bike, his has the triple, mine came with the double...), do I need to replace the 111 BB with one that has a longer spindle or will the 111 work with the triple? Additionally, is the the Avanti front derail adjustable to accommodate a triple?

Thank you in advance! So glad to have found this forum.. first time really tearing into a bike and definitely need all the advice, tips and wisdom you all have to offer here.