求助于各位成功前辈：广州意大利申根个人游签证

各位长老好！

想请问一下在广州签意大利申根个人游需提交的资料按意大利领馆官网上说的就可以了吗？我问过几家旅行社的代签，他们所说的条件比网上的多一些和严格许多，收费1700~1800元。俺穷人一个，想自己搞掂，省下几百一千，请各位长老赐教，除以下所列还需什么资料？意签需注意哪些问题？护照上只有一次新加坡个签。先谢了！

官网要求：
1. visa application form (click here)
2. recent passport-style photo
3. passport or travel document valid for at least three months after visa expiry date
4. return-trip booking or ticket or proof of available means of personal transport
5. proof of available lodging in Italy: tourist vouchers, hotel booking, offer of hospitality (click here)
6. proof of economic means of support, as per Ministry of Interior Directive 1.3.2000(click here)
7. documentation of socio-professional standing
8. health insurance policy with a minimum coverage of