Eduard produces 2 photo-etched sets.
#48227 includes cockpit, gunner station, oil cooler radiator, undercarriage, canopy & exterior parts.
# 48228 is for the bombay & flaps.
I found these at Great Models Webstore - #48227 = $ 11.45; # 48228 = $ 15.30
Many mail-order businesses carry Eduard. Shopping around may find better price/ service.
Hope this helps !