To be honest, we haven't looked into the cost yet. But with the tanking Australian dollar it might end up costing no more than a made-to-measure suit from Duchess Clothier.
Fullin Tailoring, on Beaufort St in Mt Lawley, are third generation Italian tailors, willing and able to make "period style suits". I guessed this before I checked out their site. Because their window display has two chipped mannequins in lime green and rust red 70s safari suits. Those outfits mightn't match our "wedding theme", but they'd sure match BCB's sideburns.