Yes and no more oil cup needed, I have been using wire drives on Nitro boats with no issues thus far.
I have bought 3 times from Jeff Wohlt reasonable prices and very straight drive lines.
.062 /1.6mm, .078 / 2mm , .098 (2.5mm) is what he carries so .05 thru 60 size engines.
http://www.rcraceboat.com/