just my opinion, but financially it may not be worth the trouble,as said previously you will be up for $35-$38k for conversion on top of all your shipping costs etc. and with the new model being released over here in right hand drive for around the $50k mark, I think the value of the current models like yours will possibly drop.
there was one here on the Gold Coast 05-06 convertible last year for $35k.
as I say just my opinion, depends if the car holds any sentimental value I guess.