Here's a list of Accurail models and their corresponding prototypes (if any) that I am aware of. Can you help fill in the blanks?
#2000 ACF 3-Bay Hopper Burlington Northern cars built in 1982. (4600 cu.ft.?)
#2300 Canton Car Co. Coal Hopper ?
#2500 USRA Coal Hopper New York Central 55-ton cars.
#2700 Wood Side Coal Hopper ?
#2800 Panel Side Coal Hopper ?
#3000 40' Steel Double-Door Box Cars built by Great Northern, ca. 1956. Roof and fishbelly side sills of GN 3000-3499 built 1955 and the sides and double 6' doors of GN 3500-3999 built in 1956.
#3100 40' Plug Door Boxcar Cars built for Soo Line, builder unknown, possibly home builds.
#3200 AAR 40' Steel Box Cars 1944 AAR, 10'-6" height, 1/3/4 late improved dreadnaught ends.
#3400 40' PS-1 Boxcar ?
#3500 40' Single Door Boxcar ?
#3600 40' Double Door Boxcar ?
#4000 Wood Outside Braced Box Cars Canadian National 500500-503499 cars built 1923.
#4100 40' All-Wood Boxcar ?
#4200 Wood Outside Braced Box Cars W/ Steel Ends Grand Trunk Western 1 1/2 door auto cars rebuilt with single doors after reassignment to CN.
#4300 Wood Boxcar-Steel ends ?
#4400 Wood Outside Braced Box Cars W/ Steel Ends & Doors ?
#4500 Wood Boxcar-Steel Doors/Ends ?
#4600 40' DS Wood Boxcar ?
#4700 40' Wood Stock Car ?
#4800 40' Wood Reefer Burlington Refrigerator Express (BREX) cars rebuilt by FGE in the late 1930's, early 1940's.
#5000 Single Door AAR Boxcar ?
#5100 Plug Door AAR Boxcar ?
#5200 Double Door AAR Boxcar ?
#5300 Combo Door AAR Boxcar ?
#5600 Exterior Post Modern Boxcar ACF 5080 cu.ft. car
#5700 Single Door Welded Boxcar ?
#5800 Plug Door Welded Boxcar ?
#5900 Double Door Welded Boxcar ?
#7000 6-Panel All-Wood Boxcar Closest match are several groups of Illinois Central cars built in the early twenties by Haskel & Barker, Western Steel Car Co, and ACF.
#7100 6-Panel Wood/Steel Boxcar Illinois Central 176000 - 176999, built in 1927 by Pullman.
#7500 70-Ton Triple Hopper ?
#8900 89-Foot TOFC Piggyback Flatcar Bethlehem Steel 89' piggyback flat.
#9200/9300 89' Open Auto Racks (Bi-Level / Tri-Level) Bethlehem Steel 89' piggyback flat with Paragon rack built in the 1960's.