Wow, I love this!
I'm the historian for the 284th and have several photos of their compressor trucks, you can find them in the photo galleries of the various companies at:
284thcombatengineers.com
On the 284th's website, in the upper right is a search box, if you search for 'compressor' you'll see a handful of pictures of their trucks. There may be others in the galleries that I just missed or hadn't gotten back to labeling them so they show up in the search. I'm really curious, why did you choose to use the '284th' for your truck??
Thank you and stay well!
Mikel
Attached image shows T/5 Howell by a C Company compressor truck