NH 320 Finger bar

So the drive chain broke while the finger bar was in the chamber at the end of last season.  What surprised me was that the plunger hit twice before the shear bolt broke.

 

Anyway, I got it all apart and need a new bar.  But, $350 from NH for an aluminum bar with a few holes drilled in?  Has anyone ever made one out of some stock material?  Is it a custom size?

 

Also,  I have to replace a couple of the roller wheels that attach to the bar.  $115 a pop for those.   They're all kinda tight, has anyone ever had them apart?  There's 6 of them.   If I was to replace all these parts, it rapidly gets to the tipping point of the baler value with NH prices.

 

Thanks.

 

 

NH 320 Finger bar