Out of the list you originally posted the Cyclone is by far the best. It is very much on par with the fastest chassis there is (416) but is both cheaper, has much better parts support (OS though) and is THE only strong asian chassis. The two consistently fastest 17.5 drivers in sydney both run one (although one now has an even faster car going together right now).

Considering you are a windsor local another good choice would be the T3. XRAY has been for a long time now the most durable EP chassis on the market, has the 2nd best diffs and now that they have finally woken up about how you correctly mount suspension, great handling too. They are also now backed in Australia by an importer who will provide fantastic parts support.

These are probably your best choices for all round mainstream support.