M7040 Adding FEL 3rd Function Hydraulics

[jaredyates]

I'm looking to add a third function to the M7040 with the LA1153 loader. I have read that there was a factory option for the third function to be included. Before I order the WR Long kit, is there any reason to try and pursue the factory option? I haven't noticed that there are factory part numbers in the Messicks parts diagrams, which has me wondering if there really was such a thing as a factory option?

 

[m7040]

I have the factory option on my M7040. Use it for grapple and snowplows. Works well and never had a problem with it