This is anything but a starter project, and you would be well into full bore custom territory -- you would likely be making custom PCBs or at least standoffs, flying wires around to things that might be known but you would have to read diagrams for, likely fiddling with CNC/3d printing, probably a bunch of hand tool work, the battery pack and screen thing mentioned, whatever needs to be done to make the screen work in its new location (or adapt and existing one). Nothing too outrageous or requiring of particular exotic engineering skills but still a grind even for someone that has done all that before, and likely a fairly high bill for it all (would not be surprised to see this in the hundreds of dollars).