Absolutely, but it takes a lot of careful actions. You will need an original set of die cut adhesives, some thin double stick tape to cut to size, a working undamaged replacement screen, some disassembly tools, a static free work surface. There are videos on replacing the outer display.

In theory, if you have access to the physical location of the chip, knowledge of how that chip operates, locations on the circuit board for the memory address circuit traces, a good quality electronics workstation magnifier, an electronics grade surface mount micro soldering station and antistatic working area, and access to the correct added chip AND there is physical room to add / remove the chips, upgrading the T100TA just for the experience and challenge should be possible. In the old days before ifixit, I upgraded my original IBM 64k PC motherboard to a whopping 256k system memory. However I had insider information from one of the circuit board designers at IBM with a very detailed step-by-step process that included drilling through two layers of the circuit board to expose the necessary circuit board land to solder onto the necessary new address line for the chips. Start with locating IF the 2 gigs of system memory is a separate chip and not built into the ATOM processor chip. If the system memory...

There are several places with new OEM parts and also Refurbished used parts. Mobile Sentrix is one I found for "used " and refurbished - cleaned up parts. Motorola Parts New, two other places have been referenced for parts in this and other Moto Razr posts. I have found a few others, but their prices are outrageous.