That's dedication to travel to the hill. It's fairly flat here, but there are some climbs nearby, some of them quite steep.
I'm not sure I could manage with a single gear bike. You at least need to be able to shift up as you gain speed and down for the hills. That has to make it harder for you.
I was reading about 'Everesting' where cyclists try to do the equivalent of climbing that mountain by going up and down a hill. That would be a lot of reps for you.
I'm not so keen on cycling on busy roads. There are some around here that I would avoid. Stay safe!
!BEER
I am not a fan of busy roads either and am happy the city has an extensive cycling track that technically no other vehicle or even pedestrians are allowed on. Of course there are some people that violate this but there are enough Karens and Chads around here to let the people know they don't belong there.
Hill climbs on a single gear bike certainly are difficult but seeing as how the rest of the city is completely flat it is just one less thing I have to worry about breaking since it has always been the derailleur that was problematic on any bike I have ever owned.
Oooh, I will not be doing this. :)