I haven't done the swap yet as I want to get the front suspension sorted first but I think will use the 4x4 labs adapter as they pretty much seem to be the only ones that make one for Toyotas sadly. I've found adapters as low as $300 for jeeps so I find it a bit disheartening that the 4x4 labs is $625 but that's one thing I am not equipped to make so I guess that is what I will run. Having said that the quality of the kit looks top notch so with that in mind I guess the price is less daunting.
Yeah, you pay a little more with the Labs but I can assure you first hand, the craftsmanship is top of the line. I am friends with Luke the owner and he is a stand up guy. When I built my 4runner he lent me his shop welder - no questions asked - for a weekend when my buddys took a crap on us.
He is also a personal friend of Marlin, and likewise, has many of the same traits. He sees you broken down he won't hesitate to help. There are only a few outlets I spend my money at when it comes to my Toyotas. Marlin and 4x4 Labs are two that will always have my business. You won't be dissapointed going with the Labs adapter.