disclaimer. I did this  write-up of the planning after the project was done. But this was more or less the steps I did follow .

Get familiar with the e-paper displays

Using the Universal e-Paper Raw Panel Driver HAT from Waveshare and a teensy 3.2  or a Arduino. Get the examples working.

Modify existing code

Modify code to test refreshing and partial updating still using teensy 3.2

TI LaunchPad 

• Get a couple of simple examples working .
• Port e-paper code from the Arduino examples to Energia.  The SPI lines will not match anymore.
• Solder a 32kHz crystal on and get examples running. The MSP430 must go to sleep and wake up .

Move to breadboard

Wire everything on a breadboard and test.

Flash chip 

• Solder a SPI flash chip to a breakout board and test from a teensy 3.2
• Add breakout board to the MSP430 breadboard and wire . Check the CS . There is now two one for the e-paper screen and one for the flash chip.

Desktop App for uploading data

Create a simple C# forms app to upload images to the flash chip using a teensy

Code revision 1

Modify e-paper code to read flash data to the screen.  Sleep for a minute and update screen.

Power testing

Use a CR2032 and check if display and code still work.  Connect an amp meter and check power usage 

Design circuit-board in eagle cad.

Using the design from the breadboard and the schematics from waveshare for the e-paper driver . The board must be smaller then the screen. Use SMD components 0402 / 0603. 

Send board design to get manufacture 

Seeed, PCBway or JLPCB have good specials

Order parts

Digikey is your friend

Code revision 2

Modify code closer to a clock. Hours to the left minutes to the right.

SMD soldering.

I am a newbie in this but not scared to learn

• Order some low temp solder past
• Buy a hot plate.

3D print a frame

Design a frame . Will start using an online site like tinker cad.