Current Delphi package in engine/packages question

Hi again, sorry for the few months delay but I had a lot of duties and very little time. I have seen that some work have been done on delphi compatibility in here - Delphi Port (WIP) by and3md · Pull Request #338 · castle-engine/castle-engine · GitHub. For the next few months I can finally help with porting, so I would like to ask what should be my starting point basically now, when you have started with porting. I was thinking that I would take the PR as starting point and start fixing things that might not work yet, and then continue with porting other modules here. Dont know if you guys have any plan besides the steps listed in PR or how you would imagine the next process.