Re: Front Mounted Spare Tire
Remember there are many ways to solve a problem...
An Extreme Outback Tire repair kit has more than just some plugs...it has big patches and you can easily add a few items to you can sew up a sidewall split.
When I did my Overland Training classes we broke the bead (use a hi-lift, drive on it, or tyre plyers) sewed and patched a 4in long sidewall tear, reseated the tire and filled it with air.
Once you have practiced bead breaking & reseating you might just want to take a spare tire (vs tire/wheel) and find somewhere easier to stow that.
Also I don't know the story behind your dual blow outs in Death Valley but if it was me I would look at all the possible factors like tire pressure, driving style, speed and see if any of those could be changed.
Of course the folks who travel the Outback have dual swingouts on many rigs since it is so far between towns/stations.
Anyway just tossing some thoughts in.
Go out and play in the dirt!