(ET) mower deck question

[Rod Hower <rodhower ameritech net>]

My mower deck appears to have a hollow metal bar
welded to two metal blocks maintaining a 1" space
between the deck and the wood rollers.  It appears
as if this is 'aftermarket'.  
I looked at the 'main components' pdf from ET.org,
but the quality is low.
Does anybody have better pictures showing the back
deck roller assembly?
Hopefully Bill Gund has this part (that holds the
rollers).

How much does bill charge for the 14" mower blades
for an E15?
I also need the part that attaches to the PMDC motor
shaft.  I butchered the motors this weekend because
everything was rusted so bad.
I'm putting 3 BLDC motors with variable speed control
in their place (these are dumpster dive motors,
otherwise sold for $300 each, and they are new)
Rod