Hi Pietro, so far, the only issue listed as having any problems so far is issue #4 with the cut of the sides of rib 13 (parts 13A & 13B).
Your best option would be to check these now (assuming you have the issue) and confirm that the ribs match when placed together. Most issues seem to be fine but a few were miss-cut and the deck levels did not line up.
Providing this is fine, there should not be any problem with you storing the issues for a period prior to building.
When you come to starting your build, check the pieces in issue order for signs of warping/twisting. If your parts are like mine, you'll find varying degrees of warp. This is easily rectified by soaking heavily warped pieces (slightly damp for lightly warped) in cold water, placing them between two large floor tiles, using the flat faces as a press, and finally place a heavy weight on top and allow to dry. Drying times vary depending on degree of warp and how wet the pieces were made.
Once flat, store between another two floor tiles to keep them flat until needed in your build.
Good examples can be found in MWG's and Court Orchard's build diaries for the Sovereign.
Only other thing to do would be to confirm parts quantities against the issue listings as sometimes a wheel or pin might be missing - looks like I've gained an extra pin from someone elses issue...

I also don't think there would be a problem with DeAgostini in replacing lost/damaged parts but obviously, the early they are informed, the quicker they can deal with any problems...
Hope this helps
Andy
Current Builds:
- HMS Sovereign of the Seas
Planning on Building:
- Scratch built HMS Victory full detail interior (I know what's inside even if you can't see it

)
Completed Builds:
-