Nice work!
There is a project Plus 2 locally that has a similar configuration. The owner mentioned he started the project in South Africa years ago. He sourced the custom space frame chassis from Spyder. I don't know the modification details, but if I got the story correct the engine and transmission were with Spyder when they built up the chassis to suit it. I had no idea of all the fitment issues that had to be dealt with to make the package work.
I should check in with the owner this summer and see how he is coming. I must say when I visited him a few years ago I figured the Toyota drivetrain would be perfect for a truly usable Plus 2 build, and would tie back nicely to current Lotus drivetrains.
As Rohan mentioned, there was a nice Toyota equipped Seven replica at our local Cars & Coffee last year. My Esprit V8 was drawing some interest and questions from the younger enthusiasts, but the Seven owner and I most enjoyed the young guys looking over the Seven and knowing all the Toyota engine and transmission details, likely donor cars, tuning opportunities, etc. Figured a Toyota Plus 2 would have a lot of appeal.
Best of luck with the project and thanks for posting.
Stu