The detailed step by step guide to configure the KYC procedure on your WordPress site is published:
https://ethereumico.io/knowledge-base/kyc/It is based on a free version of the Ultimate Member WordPress plugin.
Feel free to use it!
Only collecting datas from ICO participats is not enough. You still need to check and verify, if the data they have submitted are valid.
And for this you would need a company to do this for you and this cost money... it´s is not so easy...