Photogammetry Tree creation

Hello there folks, getting started on photogammetry and creating assets for games and was wondering what would be the best approach for creating a complete game ready tree using photogammetry?
Speedtree has the option to merge a photoscanned trunk with the rest of the tree that was procedural generated, but that option is not available for subscription based licenses so it’s out of question for me,
I also heard the same can be done with growfx and 3dsmax, but it seems quite an expensive plugin.

Any tips or workflow techniques would be appreciated.

https://docs.unity3d.com/Manual/ExpertGuides.html

Don’t want to be rude but I wouldn’t post in a forum before trying to gather as much info on the subject as possible and I have already read those documents