I found a program called Tinke that was able to open the archiveDBK.dsa file and I think I've located the models. They were in "archiveDBK\mdl\chr" I'll post Goku's moddel in case anyone wants to check out the format the models are in, they're DSE files. I can't find much info on Google about DSE files, the only NDS related DSE files I've heard of are audio files so I'm pretty confused right now .
Here's the model: https://mega.nz/#!4uBimCBK!SmKpQMm5QNPgy...eH7Ig_qX5s
Here's the model: https://mega.nz/#!4uBimCBK!SmKpQMm5QNPgy...eH7Ig_qX5s