Pound Design Automotive is the pastime of a mechanical engineer that loves cars and can't sit still. I offer the parts for sale that I've designed for this project. They've worked well for me and I think they'll work well for you too. These parts support LS or LV3 swapping Porsche 986 and 987 Boxster and Cayman models.
Contact me to order at jeff@pounddesignauto.com or 727-371-5853, text message is the best for initial contact.
The Swap Info page has information about many aspects of the project.