Coilovers require less backspacing because of the added space necessary for the shock/coils to clear the frame and the tire at full stuff, something that isn't a concern with a traditional coilspring/shock lift. I'll be surprised if you find something short of a full custom set-up that'll work (and that custom system would require boxing the frame to create room for the coilover, not something I'd be real keen to do).
TF doesn't sell a coilover set-up (and it seems some guys don't understand that based on their recommendations of the TF LCG 4" and 6" systems, which are both traditional coilspring/shock lifts). EVO and Rebel probably have the best bolt on set-up's you'll find, both require lower backspaced wheels in order to clear the coilover itself at full stuff. I'm personally partial to the EVO set-up as it can be set at a much lower lift height. If you are open to welding, there are quite a few other off-the-shelf retail options available (as mentioned previously Synergy is one, EVO has another, Tribe also has a set-up that can be welded on) as well as custom solutions that any competent off-road fab shop could handle. Any long arm system will work fine with any coilover set-up, don't base your coilover decision on that, pick the coilovers you want, then pick the long-arm system you want. Pay attention to the joints, the coilover system is going to offer a lot of flex and you'll blow out bushings in cheap control arms.
Why the aversion to spacers? Properly installed and torqued, they aren't much different than a wider axle. I've been running a set for nearly 25k miles and haven't had a single issue.
Only other option I can think of is to go with axles with more WMS to WMS spread. With 69" you could easily run 4.5 inch backspaced wheels.
Where in TX are you? If you're in the DFW area, you should be able to find just about any set-up you want and get a first hand look at it.
