The texture limit is 6 or you will get light mapping errors. You will need to look at these models closely, as it is a big puzzle to get them condensed.
Set the FPE file up properly or light mapping times will increase by the number of textures. Remove the texture call and the shader call from the fpe file.
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s), 8gb RAM, Nvidia gtx660, Windows 7 Pro 64bit
