I'm not sure if this is the best way to do it, but you can force them to be available by adding a line to your globalload.txt file.
You can find this in everquestinstallfolder/resources/globalload.txt
If these are the first few lines of globalload.txt, you can add a line. Replace the zonename_chr with the zone which actually has the crab model. This will only work for whomever has this modification to their globalload.txt.
Code:
1,1,TFFF,zonename_chr,Loading Characters
1,1,TFFF,GlobalFroglok_chr,Loading Froglok
1,1,TFFT,GlobalPCFroglok_chr,Loading Froglok
1,1,TFFF,frogequip,Loading Froglok
1,1,TFFT,GlobalSKE_chr2,Loading Froglok
1,1,TFFF,GlobalDRK_chr,Loading Froglok
...
Hope that helps