Coop placement

Hi there, I'm just getting started on my chicken farming dreams! lol

I plan to get about 2-3 hens (I think I've settled on Wyandottes) and am conflicted as to where I should put the coop. I have an area in front of the house, across the driveway (probably at least 100-200' away) that was a volleyball pit for the previous owners, and is flat and sandy. Or I could take my coop down to my barn where it will be on grass.

Which surface is preferable for the chickens?

I am just starting out, so it's a smaller prefab type of coop from TSC. I know the one coop from them is very small, but they have another with nesting boxes and a little run area. Do you think this will be ok to start out with? I am NOT handy at all, so building one isn't an options for me at this point.

http://www.tscstores.com/FARM-HOUSE-POULTRY-HUTCH-P15973.aspx#.UtVeiCjXfOE

I live in S. Ontario, in case that matters. I plan to bring the chickens into the barn in the winter months, and hopefully keep them out spring-fall.

I may also make a little run that I can move around the yard and cover at one end with a tarp for shelter during the day, to give them some variety