Bringing On The Heat:
Well, I got tired of waiting on my brass SAE fittings to show up, so I buttoned things up as best I could in order to be able to enjoy heat for any future snow cleanup this winter.  I'll install said fittings and hard plumb the heater lines inside the cab when I pull the cab this spring.  I've read that if a hose burst, the hot coolant spraying all over you may not be the most pleasant experience!  I'll risk it for another couple months and fix it over the summer. 
I did take the opportunity to warm the tractor up and 'play' for about 45 minutes.  Outside temp was in the high 20's but, I was impressed with the amount of heat these little heaters put out.  I do believe the days of insulated bibs, coat, hat, gloves are over.  And, the grand daughter seemed to approve of my heated cab as well!
Attached are pictures of how I cobbled the plumbing together. 
Hope you enjoy.