Whoa Nelly!! Scaled up, talk about tight fit!
My daughter found this lovely model on Youmagine. https://www.youmagine.com/designs/elephant-fabshop
Did you do something to smooth the sides, or is that the finish your machine produces?
The image of an orange one is from Youmagine so people know what I’d started printing. We did a much smaller one last night that my daughters sanding smooth.
Looks good, please post the final product also, wanna see the result 
I know Thingiverse is considered evil, but this model is quite popular and is well-featured on Thingiverse: http://www.thingiverse.com/thing:257911
the only thing is, with a normal 3Dprinter you can’t have the quality of the picture on thingiverse (i think) … I have a Ultimaker 2 and a Leapfrog HS, the ultimaker delivers a z layer up to 0,02mm , I’ve printed an object on 0,06 and it was very good, but it takes so long … just for something small … The leapfrog on the other side is faster but that’s good if you have large objects and more rectangles … if you want very high detail, the speed needs to come down … I wonder, who has a result with a normal 3D printer as in the picture …
would be great if there as some way to vapor smooth without sticking the joints together. Maybe grease proof paperin th joints and seal the inner areas to keep the aceotne out?
You could use powdered sugar and a bit of water to make a clay that you could pack into all the joints. Then after the Model is hard again stick it in water to dissolve the sugar out.
Almost forgot, make sure the sugar clay is dry before you acetone it. Acetone and water mix very well. I learned that the hard way.