The cost of the mechanical parts are as follows. The actual cost is probably a little less. The parts where ordered from McMaster back in January so I don't remember how many "extra" parts I ordered that may have inflated the overall order. Anyway, the pulleys and the rods are a bit pricy.

Part Name	Qty	Vendor	Vendor Part No	Cost	Ext Cost
Trapezoidal-Tooth Belt /ft	16	McMaster	7959K21	1.810	28.96
Timing Belt Pulley 20 Teeth	3	McMaster	1375K39	9.810	29.43
Timing Belt Pulley 60 Teeth	4	McMaster	1375K57	14.630	58.52
O1 Tool Steel Rod 3'	10	McMaster	88625K67	4.880	48.80
316 Stainless M8 Rod	8	McMaster	94185A160	11.95	95.60
Misc Spring, Bolt, and Nuts	various	McMaster	various	107.68	107.68
				Subtotal:	368.99

Finding the parts for the laser cut acrylic RepStrap is proving to be quite challenging so the current plan is to build whatever component is available starting with the extruder while the rest of the components are located. It will be good exercise in SMT Soldering.