I don't think that you will break the new tie-rods that Matt Brown sells, but that is just going to transfer the breakage to the CV joints. The other issue in your plan is that I don't believe that there are any 5.38 gears for the 10-bolt available. For some reason, Tera made many fewer sets of the 10-bolt gears than they did the 12-bolt sets.

You can alieve some of the issues with the CV joints by making extended axle brackets, but that is simply a band-aid. I run IFS with 33s, but I have extended axle brackets, the uber-heavy tie-rods, but I only use the front locker if absolutely necessary and each time I do I expect the CV joints to go.