Hi mate
I went through a multitude of options when i was looking.
The standard box used by some of my guys at work is sidchrome. I dont rate them much, , not for the money.
I have had a couple of white international roll cab and I rated it very highly, especially the heavy duty models. I think they are probably the best Australian new box around.
I ended up watching ebay for over a year and found a classic 78 in brand new condition for 2750.
Thats obviously over your budget but a good deal onre expensive boxes can be had because they don't sell very often so it's a buyer's market.
Kinchrome is rebadged kobalt, theyre ok but I think there are better options.
My local tool shop has around 20 roll cabs on display. If you're near geelong its worth a visit to qualitool.
I would get the wide white international roll cab for your budget. Have a look on ebay for VEK tools as I think they carry them.
I looked at importing too but the dock charges are ridiculous.