A professional tuner and installer with a better understanding of the Gen-4 Viper electrical system than you can imagine. That's just for starters.
Perfect for an 08-10 Viper Engine... a generic build, perhaps. Unfortunately however, there is no way to nail down a 100% correct rotating assembly until you pick a builder, take into account THAT builders preferences, build styles, and options, and you absolutely need to have a final build direction chosen. Will the parts you bought work? Sure, in most applications they will... but they certainly aren't the same thing I would choose. They may be the same manufacturers and materials, but that doesn't mean they have the same design or measurements overall. There are options available that require specific alterations to the rotating assembly that must be taken into account from the beginning. Based on what you are discussing, with regard to Nitrous, TT, 10:1 Comp, etc... you are taking about some fundamentally different builds and piston designs, especially on a Gen-4. Some tuners use standard part designs for multiple applications, some don't.
Generally, they will warranty it if it as obvious failure [physical damage new in the box, etc], but in general, no, an electronic device that requires a wiring harness to be assembled will NOT be warrantied since you can easily damage it by wiring it wrong, and you are 2-3 sales removed from the manufacturer at that point. I was however primarily referring to... who exactly do you plan on asking for the options you need? The software help? Hardware help? Wiring harness design? Hardware configuration? Sensors? Tuning? Many of those items require dealer intervention or are Viper specific, and unless you are extremely versed in Motec and engine management in general, you are in over your head on this without the help of a REAL Viper tuner, not an online retailer.
Basically, what it comes down to is why would a tuner support all of these items or give you information... so you can go and buy it online? Even if you buy it online, a tuner would end up billing you separately for all of the after-sale support, some of which would be included had you bought it from them originally. Secondly, what is to say that tuner would EVER use the ECU you are looking at in your application given the choice? Thirdly, liability... who do you point the finger at if something doesn't go as planned when you assemble it? If you end up with a bad ECU; you will point the finger at the installer, he will point the finger at the ECU manufacturer, and the ECU manufacturer will point the finger at you- and specifically, that finger is going to be of the middle variety. The exact same argument goes for engine parts as well; If you just want an "engine assembler", then don't be surprised if the final product doesn't work out/fit together/needs alterations/etc.
There is a fundamental reason that multi-builder/tuner builds turn into a disaster: Because everyone does things differently, and not all ideas are interchangeable. I have dealt with enough of them over the years to avoid them like the plague, because I have always ended up picking up the slack for someone else. In the end, the builder is the one who gets to find and deal with all of the hassles, mistakes, and problems that all of the "parts suppliers" walk away from after making their quick sale.
NOTE: comments in this post are in NO WAY directed towards Roe Racing, just speaking in general terms.
Hopefully, they will be ornaments for only a few months as I want to admire those beauties close to my bed and pillow... LOL.. Ordered the CP pistons with their rings and the Carrillo Rods with the multiphase bolts. 
