I agree with Miguel, the banjars I've seen look pinkish when larger, not particularly attractive.
I've lost count of the times I've said this, but price should be the last thing you consider when buying an arowana. Add up the cost of a 360g+ set up, 10 years worth of water and electricity to run it, and all the food you'll feed and suddenly the $600 difference you're talking about between a chilli red and a banjar seems pretty insignificant. Low grade aros are great for people who want to put a dozen of them in an outdoor pond, but if you want a centrepiece for an aquarium at least fork out the extra to get a reasonable RTG. You're going to be looking at it for years to come and spending thousands on housing, feeding and maintaining it, at least get a fish that will look good in 5 years time!