$181 - that's just for one, and you'll likely need THREE for high performance braking!
Search ebay for "OHMITE" or "POWER RESISTOR" etc... many many surplus high wattage resistors available from $3 to few 10's. Slap in a high wattage device and you can forget about the thermal cutout etc. make sure it's vented and protected from chips. I prefer a separate compartment from the controller for that type of resistor. My "block heater" is connected via thermal grease to a heatsink in the top of the enclosure.
300-400 watt 120v "anything" will work well as a braking resistor (check your drives' minimum resistance)... coffee pot heater... etc
Here's one of my installations.
http://s238.photobucket.com/albums/f...de53/BP%20VFD/
The "block heater" is attached to the slab of aluminum plate in the top of the enclosure. Also... I modified the motor so it had a fan switched by the VFD relay contact (to provide cooling air even at low motor speeds).
The big black contactor is so I have a front pane; "one switch" power disconnect for the 220 and the 4 120 volts plugs in the bottom of the enclosure.