I would not center it. You will need all the unloading auger length you can get. We have run draper heads that are offset and it is not an issue on balace or anything.
Be sure to update us as to how the Crary head works! It looks interesting to me. Stupid question here but 36ft works out to 14.4 30" rows-so what is the actual working widthIJ 35' so you can take 14 rows I assume.
Hello I run a 42 foot hb head on my one 72 and a 36 foot hb on my other 72. I unload on the go with now problem, and for balance there no different then any othe head.