Hippo - Welcome to the forum.
The D Type still appears for sale on the Tribute website.
http://www.tributeautomotive.com/dtype.html
But it would still be worth checking with Tribute for availability and they can also advise on suitable donors.
Unfortunately, there haven't been many build threads, but you could try sending a PM to
Mick O'Malley who has recently built one.
There are some photos of his build in
Scottie22's threads, such as these.
http://www.madabout-kitcars.com/foru...&postcount=224
Hope that helps, Paul.