As a follow on to my previous question (hope I get more responses... )

I am worried that I won't mount the cowling "square" to the fuse. This is important since I am going to use it as a guide for mounting my ST 3000 inverted (any comments on this welcome ). I am thinking that since the firewall has right thrust built into it, and since the crankshaft opening has a similar angle, that if the measurements from the firewall to the front of the cowl are equal and both the left and right sides of the openeing the cowl is square to the firewall. And, if it's square to the firewall then its square with the fuse... Does this sound okay?

TIA for your help.