Agree w/ rebel,

Bike fitting is not a Secret Society dark art or sudden flash of individual insight. This path has been well trodden by serious folk who have quantified that process into several Fitting Systems that are well proven over decades of application. You do not have to re-invent the wheel as it were, that would pretty much be a waste of time, effort and $ with a yield of dubious results at best.

Several fitting systems are available on-line and in print form in English. Understanding a system, applying it's methodology and adapting the rider and bike will yield a predictable base line fit. Riding miles/hours to adapt are necessary. Or just make it up as you go along.

As Sponge Bob Square Pants once said:
"Well, good luck with that".

-Bandera