Renoir's Red Cedar 3-Compartment Compost Bin

 

Stealing inspiration from this great looking compost bin setup.  http://www.cedarstore.com/detail.aspx?ID=6275#  Price is outragous though considering the cost of materials and the fact that this should not more than 20 hours for a professional carpenter to assemble at $30 an hour.  No more than $700 tops.  
Below are my figures to reproduce:
  • Sides 1x6 − 40 x 43” / 1720” / 143 linear ft / 8ft X18
  • Guides 1x8 (1x4 finished) −  40 x 38” / 1520” / 126 linear ft (divided by two=64) /  8ft X8
  • Posts - 4x4 / x8 
  • Sides - 1x6 −   $3.60 ea = $66
  • Guides - 1x8 −   $6.00 ea = $48
  • Posts 4x4 − $12.00 ea x 8 = $96
  • Hardware and Dowels = $60
  • Total = $270
 
Prices from local cedar mill.
 
I would like to find a way to make this more modular and possibly look at recycled materials rather than wood.