Paul,
You did not specify whether the broadheads should be 175 grains in a glue-on or a screw-in version. Of course, if it is a glue-on and you need to add a broadhead adapter, the broadhead weight will increase significantly.
Abowyer is supposed to be coming out with their screw-in broadheads soon for those of us who like to have something pre-made that allows us to unscrew the field tips and screw in a broadhead right out of the package. Very good broadheads.
The Zwickey Delta is 170 grains and is inexpensive.
Tusker has the Aztec in a 175 grain glue-on that is also inexpensive.
Magnus makes the Snuffer in a 170 grain screw-in version.
Alaska Bowhunting Supply makes the Samurai and Massai broadheads in 175 grain screw-in. They are very high quality and the price reflects it. The same is true for the 180 grain Silver Flame screw-in.
Using various glue-on broadheads with screw-in adapters you can make up 175 grain broadheads if you want total weight to be 175 grains.
Allan