1/72 rpm kilo

Good day to all from Madrid. I purchased one of these impressive subs from Ric in january . Incredibly, the box was lost and the sub hasn't arrived yet :roll: . He's going to send another one. Have no words to praise his attitude about :shock: . As I expect to have it here soon, am beginning to prepare everything to undertake the building. Has anyone done it? Any special detail or circumstance to be considered?
Thank you all in advance.

J.C. Jorquera.