This post does not make a ton of sense.
If your intentions matter, then buy the kit with the intention of being able to transport your cased gun in a backpack.
If your intentions don't matter, then don't buy any gun cases, because if they're opaque, as required by law, then they're almost certainly obscuring the fact that you have a gun.
My post only concerns the case not the kit.
Only intent to conceal matters. Not intent to do harm, or intent to not alarm people, etc.
You could have good intentions thinking that concealing a gun is better to not alarm the public, but the intent to conceal is all that counts according to at least one judges ruling.
A gun case that is manufactured as such, and is obviously a gun case is not an issue. One that is manufactured and advertised to conceal a gun, as is stated in the OP's link, I would think could be an issue if the wrong cop took exception.
There is a court case and judges ruling on this type of thing that has been posted several times. I have read it many times, and argued the issue with many CGNers. I stand by my interpretation, as it is the same as the judges in the case, and could be used if the issue ever comes to court again.
Regardless this is not the OP's concern, so I have no intentions of derailing the OP's thread, and turning it into a debate over concealing guns, and proper cases.
Apologies to the OP.......