Amp B4 fork options

[ishaw]

I have a couple of amp B4 frames I'm looking to build up.

What forks suit these frames?

Obvious choice is and amp f4 BLT, but will an F3 fork also suit/work?

I know in theory any fork will fit, but hoping to get some insight into a suitable fork and travel advice.

 

[emmitch100]

I have a 80mm Marzocchi Z4 on mine.