Monitor Roof for HO Athearn/MDC wood cars 1860s

An HO replacement roof to backdate MDC/Athearn Roundhouse Oldtimer wood passenger cars. These fit the full length ~70 foot cars, not the Overton shorties. Roof is of an  early monitor type with rounded ends, based on Harlan and Hollingsworth Co. and Pennsylvania Railroad prototypes circa 1862. Includes as optional parts two each of two stove vent styles, and four larger lamp vents which fit over the smaller ones already on the roof (thought these are more ventilators for plain arch roofs than they are for venting ceiling lamps). While best printed in Smooth Fine Detail they should be okay, if a little gritty, in Versatile Plastic for $20 less.
See also the monitor roofs made for Bachmann Old Timer and AHM/Pocher cars.