Is there a ok ish US school bus kit, or resin upgrade?

[English Jules]

A NYC corrections officer and asked if i could make him a bus he drives, i know of the 32nd scale Japenese buses, and the monogram drag bus. I cant find anything better but is there a resin coversion? Hes off work this week, and will then send me real pics but he said its the same sort size as a big school bus. If its a big square type thing maybe i can convert a truck using the front, part of the chassis, wheels/tyres etc Not sure yet. I googled some pics of what it could be and it does look a interesting build!

I put up on a NYPD FB fan page of the NYPD Charger im doing, and a FDNY guy has asked me to do him a Charger, as he hates the Impala he has to drive, so im doing that with the Lindberg Charger now.

Any of you guys know of a base kit, or after market resin items that would help? thanks guys