John,
Bolting on shocks and changing coils and some sway bar extension changes and bump stop spacers is hardly = $3000 to gain all that travel, and they are the only non toyota parts [apart from steering rack bushes, which stop the torque steer, but this is a power upgraded TD, so you wouldnt know about that with the V8

]
As you know, you only get what you pay for, so what your really saying is, you cant get what you want for the price you expect to pay.
Otherwise you would be booked in at Camburg / Gieser Bros,[or other] and have the bits fabbed and get 14-15" travel from the front. Even do the back as well, while its there.
We have the design, and the detail to be able to do it, and even the idea for the fenders, so the wider track [longer arms] and new driveshafts between the drive coupling and cv can work, but for every person who wants it, no one has the coin to put up.
If you go to live axle, you may as well put dana 60's and go to leaf springs..... all old school.... for what your expecting to pay.
What your really asking for is $10-12k I would imagine in real money. Somewhere in between is where what you get,a nd what you can afford meet.
As for the thread topic, the pics and detail supplied are the best for the money Loud will find, for his use, and the next step before full fab is to add a strut top brace and coil overs to take some load and up spring rate from the T bars.