Good news!
I finished testing the parts of the Alpha Test. You can see in the pictures that I haven't glued the interwing struts nor the float ones, but they are... struts. The other engine and fload are printed and will be glued today. And the struts!
Meanwhile I have sended the beta test archive to my beta-tester and I'll let him enjoy the model while I finish to assemble mine, update the instructions (now are a kind of jigsaw) and start the other five versions in scale 1/100.