Crystal Lovibond Differences

I'm going to be cloning a 10 gallon recipe of amber ale with the following grains, but want to switch out the 40L for 60L. Here is the original recipe:

14.0# 2-row
4.0# Munich 20L
3.5# Caramel 40L
1.5# CaraPils
OG: 1.056
SRM: 12.7

I'll have 2-row, Caramel 60L and CaraPils in bulk when I brew so I'd like to substitute the 40L for a bit less 60L, and increase the 2-row. Something like the grain bill below, do you see any problems? Or will this alter the taste noticably?

14.5# 2-row
4.0# Munich 20L
2.5# Caramel 60L
1.5# CaraPils
OG: 1.055
SRM: 13.1

Your thoughts on this?

if it were me, i'd substitute the 60L for the 40L 1:1. That way the sweetness and body from the crystal malt stays true to the original recipe. You'll end up with a darker beer, but it's an amber so who cares. Te flavor will also be a little different but probably not so much you'd notice it without trying the two variations back to back.