Step 0: Lay out all the pieces as shown
Step 1: Assemble D and F as shown.
Step 2: Add A
Step 3: Add B
Step 4: Assemble C and F as shown and add to the assembly
Step 5: Move ACF to the back 1
Step 6: Move ACF up 2
Step 7: Move ACF to the back 1
Step 8: Move BCF to the left 1
Done