Help with cheapo shop speakers

[nathank]

Question about some cheapo speakers I use in my shop. They are some old floor speakers that I want to build a new cabinet for, that will sit between the studs of the wall. The shop wall isn't like a house wall, so I can't do in-walls on a plate, it has to be a full enclosure.

My question is about the old enclosure. It has some weird setup and a HUGE port in the back. Does this port seem excessive for what this is? The enclosures have a 10", 5".

With the new enclosures do I need to mock the old design, or go a different route. I know absolutely nothing about the drivers. My feeling is they are too cheap to even worry about much, but I want to make these sound as good as possible. Sealed be better than ported?
I have no specs on these speakers.

[IMG]
http://dl.getdropbox.com/u/324658/sh...k/IMAG0059.jpg
[/IMG]

[IMG]
http://dl.getdropbox.com/u/324658/sh...k/IMAG0060.jpg
[/IMG]

Port Width
[IMG]
http://dl.getdropbox.com/u/324658/sh...k/IMAG0061.jpg
[/IMG]

Port Depth
[IMG]
http://dl.getdropbox.com/u/324658/sh...k/IMAG0062.jpg
[/IMG]

The 10"
[IMG]
http://dl.getdropbox.com/u/324658/sh...k/IMAG0063.jpg
[/IMG]

Old Box
[IMG]
http://dl.getdropbox.com/u/324658/sh...k/IMAG0064.jpg
[/IMG]

Mid
[IMG]
http://dl.getdropbox.com/u/324658/sh...k/IMAG0065.jpg
[/IMG]

High
[IMG]
http://dl.getdropbox.com/u/324658/sh...k/IMAG0066.jpg
[/IMG]