Pricing reports for different components

So I spent all day Sunday pricing out the different things I needed for the project discussed in the other threads. The first on my list is the roll to roll processing. I wanted to support my local motion industries, which has always been there for me for the little things like bearings, fittings, hoses, etc. They were around twice LIST price!! I asked if it was an error and he told me no.

The best price I found was at PLCcenter.com The rotary encoder was the only thing I bought surplus. Let me know if I made some errors. The Omron sensor states that it has resolution down to .5MM


ORDER DETAILS:
Item: Marathon Motors Y538 FNFP
Quantity: 1
Description: INVERTER MOTOR BLACK MAX 1.5 HP
Price (each): $287.50
Item Total: $287.50
_________________________________________

Item: Emerson SP0205LED FNFP
Quantity: 1
Description: UNIDRIVE SP WITH LED KEYPAD, 230VAC, 2HP
Price (each): $1,380.00
Item Total: $1,380.00
_________________________________________

Item: Fsi RSE21210060SFR6 NSFP
Quantity: 1
Description: ROTARY SHAFT ENCODER 12-28VDC
Price (each): $106.50
Item Total: $106.50
_________________________________________

Item: Omron EESPX304W2A NSPP
Quantity: 3
Description: PHOTOELECTRIC MICROSENSOR PMS D-ON W/1M CABLE
Price (each): $40.00
Item Total: $120.00
_________________________________________

Item: Omron EESX670PWR1M FNFP
Quantity: 1
Description: 5MM SLOT STD, L/D-ON, PNP, 1MC
Price (each): $27.20
Item Total: $27.20
_________________________________________

Subtotal: $1,921.20
Shipping (UPS Ground): +$84.55
Grand Total: $2,005.75


Forgot to mention that they have a USB to RJ45 cable for $150 for one of their modules. Is there anything proprietary for this or can I use something like this:

http://www.amazon.com/AGILER-RJ45-ADAPTER-NETWORK-COMPUTER/dp/B000BL3M3U

Thanks

Jason