Thanks, we are building a bigger one and will be seilling that one. Yes the controller is PID and can be programmed to do many things, although basic target temperature and current temp is all thats really needed least in our case. Below is a list of parts-prices etc for most of the parts used except for the steel and wire.
McMaster-Carr parts below
Enclosure 18x18x8
75065k43
60.82
Contactor 240V 3-pole
6564k83
55.26
Main disconnect Panel Mount
6759k233
53.48
Power Distribution Block
7626k33
37.02
Thermostat
Digital
38615k11
188.42
Dial-IF DIDGITAL IS NOT WANTED
33215k22
92.12 connector # 7122k19 4.20 needed for operation
Thermo coupler
Type J
3871k91
37.22
Mineral wool
#9328K43
Gasket
#8815K42
Fan from Grainer
4MH08
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Cheaper PID controller can be bought here
http://auberins.com/
Hope that info helps-took me awhile tp make the pics smaller to post here!!!