is it hard to put parker bulbs in these as im looking at getting a set for my th executive.

No not hard, one piece or two piece parras?

http://www.aussiemagna.com/forums/showthread.php?t=46010&page=1

What I did, was take the parker globe holder from a 2nd gen magna that has parras, that clips right into the 3rd gen parker allowance, job done.

2 piece paras. here is a pic
http://i.imgur.com/e8zGFjj.jpg