Sumpter Valley caboose #3

Let me throw this into the works. The Sumpter Vallley had two different cabooses numbered 3.
The second one was a rebuild of the first one. The question becomes one of what part of the first one was salvaged and used on the second. Was the body rebuilt or was only some of the metal work reused? From the dimensions on the sheets I have it appears that the body was not reused. So maybe the old body may have been sold off.
Information about the first #3:
Caboose #3
Lgth 27' 3"
Width 8' 0"
Over all hght 13' 4"
Weight 20,900
wood body & underframe
retired 12/3/26 AFE #292
rebuilt under AFE #293
Information about the second #3
Caboose #3
Lgth 28' 7"
Width 7' 9"
Hgt over run boards 10' 7"
Weight 21,600
Installed 5/23/27
retired 7/28/43 AFE #588
sold to US Army
How do either of these dimensions match the body that is in Oregon? What do you people up in Oregon think?
Brian Norden