If you are looking to get into park, the slackcountry might not be a great idea. Cant go wrong with Cartels, great do all binding.
Are you limited to just the stuff on their webpage? I have seen Sportchek here in Calgary with multiple Rossignol, and K2 boards. If they have those brands, I would take a good look at The K2 Happy Hour, Slayblade and Rossignol Jibsaw, Circuit and Taipan.
In my opinion all the above by Rossi and K2 are better options for you than the Clash and Slackcountry.
If you are lazy and want quick lacing, look at the speedlace options also (Burton Ambush is a solid boot) but most important, TRY THEM ON, GET THE RIGHT SIZE AND WHAT IS COMFORTABLE FOR YOU. Bad boot fit = terrible time no matter the rest of the gear.
Sweet hook up by the friend for sure!