Emiliano, is it this one
https://www.kallenshaanwoods.com/library/uploads/INL207-DACH1-PSIDOG.pdf
I made a few of his kits years ago (not the dog) and just assembled them on the tubes, almost as per instructions. I'm not fond of CA so I used a long set epoxy. A bit messy, but this is sort of how I did it. I plugged the tube with some ear plugs to keep the inside clean, laid out all the pieces as a jigsaw puzzle, then with mag-eyes, nitrile gloves, tweezers, monofilament fishing line, good lighting and time, I assembled thusly. Sand, then slime the tube, insert tube into main body, stick on all the pieces, then neatly and tightly, starting at one end, wrap with fishing line to clamp everything in place, two half hitches and let cure. As I recall, there was enough ooze out that I only needed extra glue in a few places, but you will know. When dry, turned off the mono, and turned to shape. All in all, at the time, it seemed like it would have made a great "I love Lucy" episode. Two kits cured me... However, if you don't want to do them... I would love a piece of Milo or Koa
...