Heck, Why not use a better method that would still allow your PC to function.
Drill 4 holes in the base. Use the 12 inch heavy steel bolts. Put them in your case coming out the bottom. Weld them into place. Next drill 4 matching holes leading from the first floor into the basement. Slide the bolts through the holes so your PC now stands upright. Add the nuts and tighten them up from the basement. Then weld the nuts to the bolts in the basement. You could then tile the basement ceiling to hide the bolts. Once you are finished and the case has cooled then add your board, cards, hard drives, CD-Rom, floppy and cover back into/onto your case.
Now if you really want a laugh ask a friend to move your PC for you.