i do believe 4 point is accepted with most drag racing sanctioning bodies, its more of the design and connections that are important. the plate around the connections to the body, welding etc.
hit up the NHRA or IHRA websites to find their specs/rules. (BTW, last time i checked, bradenton was an IHRA track, so 11.49 or lower for cage requirement - though i assume you'll do better

) i think there is a sticky in the drag racing forum as well here on TR.
i wanted a cage for the longest time, a simple 4 point, but most cages that are premade arent accepted by SCCA and NHRA (though i bet if u went to bradenton they might just see it and give you the 'okay'), and most are designed for s14's without sunroofs

then i realized i didnt need it and wanted it for the look, so i scrapped it from my plans.
but do let us know, if you find a good deal on one, im sure others will follow.
my suggestions would be to see if TR user Dragin still does cage work. he does some of the best i've seen in the area.
race related also does quality work, they did taylor's cage.
sean at cfp does good work too.
but its not really the skill of the welder, its making sure you get the specs right for it to be accepted (if they do look at it - like i said, i think most tracks will just kinda take a peek and if its there they'll be okay with it - unless you're doing like 9 sec passes they might want to see the construction of it)