Skyhiranger is right, unless you have access to a full machine shop that can perform all the custom work you will need to put new outers on the axle and re-spline the axle shafts as required it is going to cost way more then finding a heavier duty axle in the first place.
In order to do this conversion you will need to do a few things. First you will need a set of Dana 44 outers, so find a Dana 44 front axle. Then cut the outers off, have a shop measure and mount them on your Kick rear housing. You will need to cut down the axle tube on one side and make a longer tube on the second, since you are changing to an off-set front housing instead of a center rear. Once this is done take your side gears and Dana 44 front axle shaft to a shop and have them cut down the axle shafts and re-spline them to fit your new differential.
The easiest way to use a Samurai front axle is to just put a set of wheel spacers on one to make it wide enough. But even with the chromoly shafts 34" tires are at the upper end, depending on your driving style.