From Wisconsin, I would get on Interstate 94 west bound, to I 90 then turn north on I 15 to cross the border at Coutts/Sweatgrass into Canada. Running the interstates in the US I find by getting an early morning start, I can make 600 miles a day, realizing I will make fewer miles the farther north I go. The multi-lane roads in Canada are not any real difference than the interstates in the Lower 48. Make the miles when you can and then slow down when you need to.
If both of you are going to be driving, then doing the trip in 8 days won't be a big problem that I see. Or if you can drive 15-16 hours a day then a 6 day trip is very doable, when need be.
I am an early riser and by noon, I will often have traveled 250 or more miles. Now folks that like to hug their pillows till 9 or 10 AM and then stop to have a "little wine" at 2 PM are going to take quite a bit longer to make the trip. So how long is very personal and how many miles a day are you willing to put in on the road is the key. What type vehicle are you using, etc. Lots of pull offs, especially once you get into Canada. I tend to avoid going through both Calgary and Edmonton, but at times it is necessary to do both as they are large urban areas. Good roads and all but just lots of traffic, especially during going to work/home hours.
Once you get through Edmonton, just head on over to Dawson Creek and get on the Alaska Hwy till your reach Alaska. Make a right hand turn in Haines Junction and turn left in Tok to head south to Glennallen, to Anchorage and on south to Homer. The farther north a person gets the less choices of roads you will have. I have taken Hwy 2 across to the Great Falls Montana area but I 95 is mucho faster for us. Great trip, slow or fast. You see the same scenery and can plan you stops on the way back.
joe b.
Stuart Florida
Formerly of Colorado and Alaska
2016 Fleetwood Flair 31 B Class A w/bunks
www.picturetrail.com/jbpacooper
Alaska-Colorado and other Trips posted
"Without challenge, adventure is impossible".