Linkias are actually very durable. ive kept one for over two years now. it has survived a tank mishap (kalk overdose) and is doing well. i think its a bit of a misnomer that linkias dont do well in captivity. the cleaner wrasses, however dont have a great track record.
like others have stated, you might want to research husbandry a bit more before making purchases. we've all made some missteps in this hobby.
keep up the good work, im sure your tank will come along just fine.
<img src="http://i143.photobucket.com/albums/r158/cchavis/marshall%20islands/PB096566.jpg" border="0" alt="">
GL
C