SD-WAN

As seen on the attached file on 2018 document "SD-Branch Fundamentals Guide" the controllers 7010, 7024 and 7030 are listed as supported for the role of VPN Concentrator. On Central it's a bit blurry (http://help.central.arubanetworks.com/2.4.8/documentation/online_help/content/public_cloud/get_started/supported_gateways.htm). Other recent documents refer that only > 7205 are supported as VPNC (HEADEND GATEWAY) on central SD-WAN. Can I still use 7010 as VPNC with some 7005 and some IAP (5 small branches) all managed on Central on a green field project? Is there a VRD available of Aruba Solution for site-to-site VPN for small deployment (5 branch and 50Mbps traffic)?

The 7205 is not supported in the SD-Branch / WAN solution. 7010 as branch gateway and VPNC is fine.

I suggest you to contact you Aruba SE about this. The SD-WAN feature in Central is not visible for everyone one, only for whitelisted customers. Also you topology needs to be reviewed by the SD-Branch team.