request for opinions on a couple of changes

["Gregory S. Youngblood" <greg@domain.elided>]

I am planning on make a few changes to the 74 spider I just got. With an
eye towards safety.

My first plans include adding a roll bar, preferably one that will not
interfere with the operation of the top. I found the bolt-on roll bars
that say they are SCCA autocross approved (I believe). Is anyone familiar
with them? Is a bolt-on roll bar as good as ones that are welded in place?
Anyone have any advice on adding a roll bar to a spider?

My next thought is adding a third brake light to the back. I know it's not
OEM, but I do believe the annoying third light does help. Of course, if
I'm going to do this I want it to look clean and professional. I have not
had much time to look at newer spiders (post 86 I think) that have the
third brake light. Ideally I want something along the lines of a single or
double row of high intensity LEDs that will not be very prominent and mess
up the lines of the car. I am hoping that is how the alfa third brake is.
I do not care for (some of) the porsche style
third-brake-light-on-a-stick, or at least that's what it looks like to me.
Are the alfa third brake lights still available? Any idea how hard they
would be to incorporate on a 74 spider? Or am I in for some serious
customization work here?

Thanks,
Greg

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