Case for Electronic Load 9.99A 60W 1-30V http://www.ebay.com/itm/172461371107?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Please take a look at the Assembly image.
Details will be added later.

Necessary components:

Male Female Dupont Wire Cables Jumper 10cm 2.54MM
http://www.ebay.com/itm/40pcs-Male-Female-Dupont-Wire-Cables-Jumper-10cm-2-54MM-1P-For-Arduino-/131882422194?hash=item1eb4ce0fb2:g:9AsAAOSwayZXjh8e

Banana Plugs
http://www.ebay.com/itm/272471929841?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Screws Case
forgot to measure it, will be added later

Screws Dispay
forgot to measure it, will be added later

Rocker Switch
http://www.ebay.com/itm/162434203806

40mm fan grill by choise. I use hot glue go secure it.

EDIT: The source files are uploaded. The design is made with Inventor.