A Ziroli design is not the best choice for a first time build. Ziroli assumes you know "all" the basics. There are few if any instructions with his plans. a few notes on the plans here and there. Spend a lot of time studying the plans, a LOT of time. They build into great models but are for the experienced modeler.
Check the Ziroli forums on rcscalebuilder.com. Lots of good info there. I have been building for years. I just completed a Ziroli Triplane, and I am now doing a Zero.