ZWO OAG:
As per this:
https://www.testar.com.au/products/zwo-off-axis-guider
I used this for a number of months before getting the Player One M54 OAG that bolts to my camera/filter drawer combo..
Does all the things an OAG should, worked beautifully with my ASI 120MM.
Retail: ~$200
Sell for: $100 ono.
SVBony SV165 30mm f/4 guidescope:
Used this briefly prior to getting my the ZWO OAG, Performed perfectly, as you'd expect, however, I've always used an OAG wherever possible, just because I prefer having one scope on the mount... Vein, I know, but I prefer how it looks...
I'll throw in an amazon USB dew heater with it.
Retail: $50 + ~$20 for the dew heater
Sell for: $25.
Pickup is in North Brisbane (4510).
Can post at buyers expense.
Can get pics on request