I couldn't open your link? But, what Bob Reed reccomended here for a punch set is not excessive if you want to do it correctly with the Browning Hi-Power. Be careful if your not to handy with your hands. Marks and scratches can happen very easily.
http://forums.1911forum.com/showthread.php?t=237855
And I also recommend having this informative disassembly guide from the late Stephen Camp. God, was he a blessing to Hi-Power owners.........
http://www.hipowersandhandguns.com/Disassembly%20Guide.htm
http://www.sears.com/shc/s/p_10153_12605_00904285000P?prdNo=2&blockNo=2&blockType=G2
This set is cheap, and is all you need. You need the 1/16" puch for the extractor roll pin. All you really need is the 1/16" and the 3/32", but for what you'll pay for those 2 by themselves, you can get the whole set.