do any of you actual owners of these things have any concrete info on exact sizes wildernests were offered in? i've seen some things here and there but havent been able to come up with confirmed dimensions. i've seen 6 foot and 8 foot length, nothing else. it seems like those of us with 6.5 beds (T100 and 1st gen tundras) are out of luck for the wildernest.
There were several models available and WilderNest recommended a model based on your truck. The regular length 6' Toyota bed took the Model 76. This was also used on the S10, LUV, Dodge Ram D50 Short, Ranger, Courier, Jeep Comanche, Datsun Isuzu Short, Mazda, Mitsubishi, etc.
The long bed mini truck took for the most part the model 91 (e.g. 7', typically about 90 inches to 93 inches in length). The Toyota long beds took a model 87
The Dodge Dakota took a model 80D (short box) or 99D (long box) and this is the one that fits best on 2nd gen Tacoma, T100. The given bed dimensions of the 80D are 62.75" x 79.75". They are exceedingly rare since the overlap of the Dakota and WilderNest was very short. There might be a few dozen of them out there. I think we've estimated on the order of a couple thousand total WilderNests and probably half of them are for short box Japanese and domestic mini trucks, e.g. model 76. The next most common is probably the regular length full size, models 99F (F-series), 99C C/K longwide) an 80C (C/K shortwide).
WilderNest went out of business long before a Tacoma and Tundra were made and even just before the T100 was made. So their documentation does not list model for them specifically.