If I remember correctly there IS such a shop but I don't remember where. I too would like to visit it because the brown man does not have the Manufacture Armor implant for 1 PED TT I am looking for.
I saw you found what you were looking for, just wanted to let you know we sell lvl 20 and 30 implants at our shop. As well of a myriad of mindforcechips. All under mark up. Look for our prettiest employee in a blue dress.