WR-1

I bought a Bob's nose cone for my B1 and would like some feedback and advice from you guys on installing it.. I've seen some pretty rough jobs on several and definitely don't want to have that happen to me.. Is it better to have it done by a good shop? Let's say I shipped my empty case and the nose cone to a good reputable shop, what would you guys think the approximate cost would be? Thanks in advance for any advice or replies on your experiences