Guys, I am doing a euro conversion on my 85 Cutty to the 87 Euro. I have everything I need, however the special nuts that hold the corner markers in are pretty roached. Went to my local hardware store and no bueno...I found some on Ebay for $10 for the four total...should I just swoop those or is there a better option. Do not want my corner lights popping out due to old hardware. Thanks for the help!