I've done the front axles on both my cruisers. Was really aprehensive for the first one (mywife's DD). But, as it had thick green junk in the diff, it was clear I needed to do it pronto. Nothing like an axle rebuild in the driveway in November in rainy Seattle. It was not fun.
Read all the posts you can, and get all the stuff you think you might need before hand. You can waste a lot of time driving all over town trying to get a few last minute things.
I did both sides at the same time. I was very systematic about laying the parts out IN ORDER as I took it all apart. The reason I did it this way was due to tool efficiency. Once I had the tools for removing (for example) the hub on one side, I just grabbed all of the tools and did a repeat on the other side. This meant I had fewer times getting up to go find the tool I needed.
Cleaning is very time consuming. A cheap parts washer is nice to have. ($50 bucks around here.)
Cleaning the birf...to take a part or not? I didn't take mine apart. It took a loong time to get them clean, and then to work new grease deeply into the birf. I used my fingers and a spatula to work in the grease. In hindsight, compressed air would have been helpful in cleaning it out.
Read through the FSM before hand, and write down all the torque values. It's easy to get them confused, and if you are working outside in the rain, you can't have the FSM sitting on the ground beside you...
On the snap ring pliers, make sure you get ones that have a flat side.
Freeze the bearing races, (not the bearings) they'll be a little smaller and fit in better.
Pay attention to which way the oil seals face when you remove them.
I did not remove my knuckle arms from the tie rod. This was a little more cumbersome, but the TRE's were newer, and it saved time.
I did not remove the brake line from the Caliper - I just hung the caliper on a coathanger from the shock. I didn't want to be bleeding brakes after working for 2 days in the rain.
There is an axle guide on the inside of the axle tube, it's oval shaped. You can see it when everything is removed, if you shine a flashlight inside. On my 80, this guide came loose - not sure why. It is NOT POSSIBLE to reinstall the axle w/out this guide in place. Christo had his come loose also. It is spot welded in place. Don't knock it loose. Just watch out when you slide the axle back in - once the axle is through the oval hole, you'll be good to go.
I had an easy time reinstalling the short side axle/birff. However, it took many frustrating tries (on both the 80 and the 60) to get the long side all the way in. I don't have the "touch" it appears.
Since you have "grey" diff fluids, you need to get the diff cleaned. Best way is probably to do the whole re-install, and use cheap diff oil. Run for 100 miles, drain and refill, then maybe do it again.
Hope this helps. A virgin solo front axle rebuild is stressful, but you'll be able to do it, and you'll feel great afterwords!