Just buy a u bend mandrel bent pipe the same size as the throttle bodies 2.25" iirc, and a 3" u as well and start chopping and welding. It's not rocket surgery.
Having measurements and whatnot wont help a ton on this job because is tight and there is a fair amount of test fitting and trial and error.
If you'd really like e-mail me and I'll give you pictures of my intake. Its a different design than toms but i used to have one like his that i also made myself then i sold it to another member when i came up with this design.
nevinbontrager@gmail.com
Mine keeps it 3" a bit longer than toms design.