BH77 on L2800 or L3400 or L3700?

[bandit67]

I'm looking for someone in TBN land that might have the BH77 mounted on one of the following: L2800, L3400, or L3700

I'm looking for the seat post height measurement.

I want to make a modification to my setup, and it looks like the seat post on those models may be shorter than my seat post.

Here's the dimension I'm looking for: