LEGO Dimensions model ripping tutorial

[bricksandbits]

hey MrLoogie363, I was wondering if i can get some help. for about a year now I've been trying to recreate the Stay Puft Marshmallow Man boss from the Ghostbusters DLC from lego dimensions so i and others can have a 1 to 1 leog recreation of him. I've gotten a good chunk of it made, but there are quite a few spots where having the actual model of it for reference would be amazing to have. I have contacted teh original model designer to see if he could help but he said he cant help me and he no longer has the original file but im free to take on this project anyway. Ive tried to see if i could extract eh model myself, but I dont have the time, skills or resources (or at least i dont think i have the right resources.) to do it at the moment. i've tried reaching out in different online communites and other individuals to help me, but to no avail. I was wondering if you could help me out with getting the model for the Stay puft marshmallow man boss from the game either by walking me through the steps or by comission (even though i dont have the largest budget), or you could point me to someone else who you think could help, or some other means.
I do have A lead with an internet archive post that says it has all the files. i looked at it and saw alot of .DAT and .DAT2 files, but i dont know which is which. but thats as far as i've gotten and im lost from there. I'll attach a picture of what i've got so far just to show that im serious about this and what im trying to do. 

I hope this makes it to you and you can help me out. you are kind of my last hope.

Thanks!