Add Connectors To Gerber

I have a medium-sized, multi-layer PCB for which I only possess the production Gerber files—no schematic, no native CAD project. I need two standard RJ14 footprints and one micro-JST-20-PH 4-pin female footprint integrated into that file set. I already know exactly where each connector must sit and will send you an annotated image that marks the positions and orientation details.

The job is to import or recreate the board in a tool of your choice (KiCad, Altium, EasyEDA—whatever lets you work comfortably), drop in those three footprints, make the necessary clearances and routing adjustments, and then output a fresh, fully-validated Gerber package plus drill files ready for fabrication. Please keep all existing dimensions, mounting holes, and layer stack unchanged apart from the additions and any trace tweaks strictly required by those additions.

Deliverables
• Updated Gerbers and drill files
• A quick placement/routing report or screenshot showing what changed (for my records)
• Optional but welcome: the editable project file in whichever tool you used

Let me know your typical turnaround time and which CAD platform you prefer to work in, and I will send over the current Gerber zip along with the placement image and wiring diagram