My front is not much of a custom job other than a tweaked in "kit". I've only heard of or seen 2 other with a similar combo. Check the link my second post for more info.
The basics of it is that it's pretty much the OLD Downey/Rancho kit:
http://www.downeyoff-road.com/SuspensionComponents/ControlArm.html#
I only added a ball joint spacer and used OME torsion bars. Any larger bars will suck on the trails, unless you're kicking up dust. I found my old stock bars to be too soft, however I would recommend using NEW OEM t-bars from a 92-95 4Runner. This will still ride soft but flex better. In my case, with runs down the beach and desert I needed something a tad stiffer and the OME fit the bill great. 25mm or 26mm t-bars will bring the suck.
The upper arms are from the discontinued Rancho 3" lift, minus the truss to drop the diff. Which means you will need the new center steering link, it is not only larger but has different offsets for the location of the inner and outer TREs.
Then you will need an axle solution. That is where Downey came in with the slip yoke axles. They really aren't that great, the pre-99 axles are only to stock hardness and can break. The latter axles, like I have are much much stronger. However, being a u-joint/slip yoke style they are inherently bad at vibration free rotation, not to mention they are not balanced. I cannot run my truck over 30mph with the front hubs locked.
The Porsche inner joints on a custom axle are a MUCH better solution. Downey now carries a Porsche axle for their long arm kit. I would look into that, and probably will if I ever break an axle.
Downey also calls for a "mega travel" ball joint; I don't know how necessary this is. Since I pulled my kit off a junked truck, it already had them and so I went ahead and used them.
I've found that using the slip yoke style axles I can only get away with a 1 3/8" ball joint spacer. I had to grind/machine in some clearance in the u-joint. However, with the Porsche axles you can get away with up to a 1 5/8" spacer.
An 8" travel shock will also have to be used. Total Chaos makes a cool shock riser but costly. Downey also makes one, not as cool, cheaper but I don't really like it. I came up with my own simple setup for around $80 total, cheaper than Downey's.
The area of debate for this setup (Rancho arms) is the steering and alignment. Guys have bitched about these arms for years, saying that after wheeling the alignment is whacked out. IMO this stems from ignorance and not going in to it with open eyes. The stock rubber lower arm bushings really need to be replaced with polyurethane. The supplied bushings for the new upper arms should also be replaced with the much harder ones Downey carries. The largest contributing factor to alignment woes is the IDLER ARM. A gusset will improve things but the nylon bushings need to replaced with something harder. These arms are VERY sensitive to height and toe! If either is off say due to a bad idler arm, the alignment will be out of whack but also the ride height will be off. And just the opposite, if something causes the ride hight to change, say a worn upper arm bushing then the toe will be off. If you keep and eye on it and know what's causing the issues, it reall isn't bad considering the 13ish" of wheel travel.
I got my basic setup for $250 in the junk yard and have a total of about $500 in it now. Not likely you will come out this cheap but then again about the only way to get this stuff is second hand.
Akarocket ran this kit with a 1 5/8" ball joint spacer, stock t-bars, differnt style shock risers and Porsche inner joints on a custom axle:
A member here on 'mud also runs a similar setup with ball joint spacers, but I don't know what kind of t-bars.