2Mourty, please note that the last 2 mobo ebay links are the same item, and also that particular seller does not ship outside of the EU.
The first mobo ebay link is also located in the UK. It would cost quite a lot to ship to the US. Also, I doubt if this Soltek board will run your t-bred 2600+ CPU OK, even though you have provided a link saying that should be OK.
I would recommend you get a QDI Kinetiz 7E-A board, but get one with the shiny silver looking caps. These can be seen on the PCB revision "2.0(S2.3)" boards. This ID can be found in the bottom right hand corner of the mobo. This board will run your t-bred 2600+ CPU at 133FSB. They are budget boards, and don't have great OC'ing capability. But the caps are good quality!
Other good alternatives are Abit KT7A revision 1.3 boards, and Epox EP-8KTA3 boards. (No other KT133A chipset-based 1 ISA slot mobos will accept your t-bred 2600+ CPU.) BTW, the 4 Epox board IDs are:
EP-8KTA3
EP-8KTA3+ (raid)
EP-8KTA3PRO (extra OC'ing, but this is a "joke" on any used "non-recapped" board)
EP-8KTA3+PRO (raid + OC'ing)
It doesn't matter what PCB revision numbers you get, either 1.0 or 1.1 will be OK. The Epox boards are infamous for having bad caps. Even if they look OK, they probably aren't. You won't get any stable OC'ing from these boards. Also, you'll need a very good PSU (powerful 5AMP rail required) to run the t-bred 2600+, plus all your other bits n pieces in it.
If you get a KT7A version 1.0 to 1.2, then it won't run your very fast CPU at 133FSB. Instead, it will run it at 100FSB. The version number for the Abit boards can be seen on the top left hand corner, at the end of the white bar code sticker.
The more I think about this, the more I think you should consider getting an XP-M CPU, such as a 2400+. Before I accidentally killed mine, it was stable in these "retro rocket" boards.
GOOD LUCK! Let us know how you get on!