Making a Steam-Punk case Mod, need tips.

[Supahawk01]

Just as the title says, I am trying to make a steam-punk themed case mod. I am just looking for tips as to where I can perhaps find materials I might need such as metal tubing, scraps, or plates. I already have 1 pressure gauge and a practically unlimited supply of vacuum tubes.

Current Specs (if they matter):
FX-8350 + H110i
EVGA GTX 1070 FTW
GSkill Ripjaws (8GBs)
970A-UD3P Gigabyte Motherboard
Thermal-take G42 Commander Case (with custom plexiglass side panel)

If you need anymore info, let me know.

 

[USAFRet]

Parts scraps?
Local welding shop, auto shop, school metal shop...

 

[Supahawk01]

Do you have any recommended cases? Seeing as how my G42 Commander is going to be a little small for comfort. My only "requirements" for a case is I need at least 3 Drive Bays (1 SSD and 2 WD Blues currently, and not planning on getting anymore anytime soon) and 1 External Drive Bay. I am mainly looking for a case with minimalistic design and quite roomy (looking for at least 23" tall)

EDIT: I think i've found the perfect case. http://www.newegg.com/Product/Product.aspx?Item=N82E16811133244
It seems to meet all of my standards. Almost entirely modular, very minimalistic, and copious amounts of room.