Originally Posted by
bikemig
I wouldn’t overthink this. I’d pick up a 110/74 bcd triple and a sealed square taper bottom bracket with the right length spindle. There were plenty of those made BITD. You can put up a WTB triple crank and BB in the C V for sale forum. You will find something
I agree with this, but to me it makes sense to buy the triple first, then fit and measure to determine BB spindle needed. You may find that your setup won't match up with others and therefore need a different BB.
If you are currently running a short cage RD, you will probably need to fix that too.