Chainline on a trek 660 fixie conversion
There seems to be a bit of confusion in your question about how chainline is measured, and it's relationship to bottom bracket spindle length and the rest of the bike - you haven't given enough information to answer your question.  The rear hub and sprocket's chainline measurement is required to decide how to adjust the chainline in the front.  Even then, the published information about chainline for most cranksets (including the one you have linked) is scare at best.

The easiest thing for you to do would probably be to acquire a used/cheap sealed cartridge bottom bracket in your desired length and see how things measure up.  Once you've made measurements, you can lock in the size for your SKF.