I have two 5U's in Oroville Ca. both are tail seat. diesel engines are free, have extra pony motors. $1500. each or $2500. for both.
Karl 530-282-4922
I just saw a D2 project for sale via Putman Auctioneers Yuba City, CA at their Spring Roundup Sale.
You could let your fingers do the buying. Good luck. JM