Seem to be able to source 175/60R14 and 195/60 no problems?

https://www.tyresales.com.au/tyre/size/175-60r14

https://www.tyresales.com.au/tyre/size/195-60r14

Other options maybe Spanish Braid Wheels custom so diameter, offset and width wharever you order and they have a local agent in South Australia though he probably only brings in the late rally wheels but explore the homepage and look at some of the classic ranges .
http://www.braid.es/wheels/products/c ... cs-racing-wheels_p14.html

http://www.samotorsporttyres.com.au/braid?page=3
Some nice classic no longer available types on page 4 even in the South Australia distributors webpage that are new copies of some classic Japanese styles that are unobtanium

Just had another look at the Rota wheels and they don't look as bad as I thought...
How would I go with 15x7 with 0 offset on the front with a 195/60 or 55R15

Rear 15x8 with -5 Offset with a 215/60 or 55R15.

Remembering that the guards are going to be flared at least 1"?

Seems the Australian stockist only sell 15 x 8 and 15 x 9 in the desired offsets.

Will have to ask if they can get the other sizes

14s will look best, plus the good tyre sizes are available in 14s. Sure - 15s have more sizes but you don't need more sizes

Yeah think I'll stick with the sizes you have. Tires will be slightly stretched though.

Do you think the -6 on the back will be an issue with a 14x8?

Hey mate,
Something else to consider is what future brake upgrade you want as they may determine what size rim you run...

for example if you fit the late S13 brakes (280mm) it'll need 15s, or if you fit early S13 brakes (250mm), you'll want 14s so the brakes don't look too small in the rim

S13 250mm on the front and r31 brakes on the rear so should be ok?

Should look right

My flares had slightly enlarged wheel arches. The flare width you'll need will be greater for the -6 offset so if you wait until after you get the wheels and tires then you can flare it to suit