The following is for anyone else that might stumble upon this thread that needs answers.

I found out how to make my USB flash drive boot. Using this MBRTool from Memorykey Tools (with just formatting, no boot files) to format the USB drive and go through the instructions from WeetHet - Boot from USB Flash drive it was able to boot.

As for the multiple NIC's I used the file structure from iSchool - How to Create a Ghost 9.0 Network Boot CD but with a slight change. In the CONFIG.SYS file, the device entries should be inputed as follows:

[*NIC ENTRY*]
DEVICE=\net\*NIC FOLDER*\protman.dos /I:\net\*NIC FOLDER*
DEVICE=\net\*NIC FOLDER*\dis_pkt.dos
DEVICE=\net\*NIC FOLDER*\*NIC DRIVER*.dos

If your USB drive root gets cluttered, everything can be attributed to be system and hidden except MOUSE.COM and MOUSE.INI.

Man, I'm glad I finally figured this out!