Mark, if you look at some of my postings, for example dreaming of a white xmas...you should find a shot of my 4020 with front chains. At first when I was investigating getting chains...I wasn't thinking about getting them for the front...but several on TBN suggested it...so I went with them. I live in a hilly area, and have found that the 4wd is great....but when you are dealing with deep snow, and especially angled blades that want to throw you in the ditch at the first opportunity...it is easy to get out of sorts. If you get that front tire over the berm of the road, watch out. Some people claim that front chains puts too much stess on the axel, but I only use them for snow, and go slow...ie I don't go down the road in high range with them on. Also, having them on the front help you with steering, and thus help keep you out of trouble. I was impressed with the chains this past week when we got 20 inches. I was able to get a good grip on some very slippery hills. Front chains are easier to put on, as they are lighter, and if you have a FEL, just raise your tires off the ground.
I got my chains thru tirechains.com (advertised on this site). It took me awhile working with them to find out they had too many extra links. Some people tie these off so they don't flop...but I just got my bolt cutter out and lopped off a couple extra links. Some people also use carabiners to hook the loose ends.
I would just get some short rubber tie downs or bunge cords to tension the chains. I have spring tensioners, but they tend to flop off easier, and I think the tie downs would be cheaper and stay put better in my opinion. Someone in one of the postings even goes as far as deflating his tires, then reinflating to get a tight fit.
I haven't tried this, but is also seems that a person could use one of those ratcheting tie down straps to pull the 2 ends of the chains together when putting them on and help you be able to hook them. Usually, you have to work with the cross chains some to get them over the lugs in a way to help hook the 2 ends together. I usually struggle with having enough hands when trying to pull the 2 ends together and hook them together at the same time. Seems that the strap would help in this situation.
Anyhow....that's my 2 cents worth.
sassafraspete