From now, and without obligation to purchase, you can get part list for any instructions from Greg998.com on request.
Just ask for it via the contact page or directly via firstname.lastname@example.org.
When you receive a part list, you receive two files:
- A "regular" part list displaying parts by quantity/color/reference/official name.
- An XML part list you can use on site like bricklinks. This kind of file will ease your parts search and purchase.