Alien componants

I'm sorry if this has already been discussed (I did search, but...). If this has come up before please lock this thread... I have seen many diagrams of Facehugger + Human = Alien Cuddles/Trilobite + Engineer = Deacon For a long time I have been impressed by the simplistic (compared to 1979 Alien) design of the Deacon, although it has many of the same components, it is just sooooooo different. After Joking to my wife that the Engineer seems to burp just prior to his helmet closing over his head... she countered that it was like he was expelling all air from his lungs... I.e the suit breaths for him (its is part biotech if not all after all, so its base code may add to characteristics). Could it be when the suit is engaged by the chair they become a singular organism. So in Alien the eruption that came from the jockey (assumed chestburster), could it be that the Original Alien was... Engineer + chair = Alien. This seems to fit to me for a number of reasons, there are so many elements of the chair in the original Alien's body and there are elements (which are similar to the Deacon) in both creatures physic which are of the suit. So from the suit(assuming it is attached symbiotically and thus alive) you get the rib cage and the angular line of the legs. From the chair and connection you would get Shoulder points (from connection witness in Prometheus) The pipes at the Aliens back (seen on the rear at a different angel) of the chair and the pipe design near its base) and the sectioned pipes beneath the Alien's ribs (a design along the length of the telescope). From the helmet the white of the inside/internal could translate to the off-white gums of Alien's inner jaw. Whereas The Deacon has pink gums (no helmet) no pronounced mechanical design element (no chair or interface). Is that why the Alien is so Bio-mechanical? I don't know maybe I'm thinking too much?