convertible styling, roll bar ? rear seat cancel ? Options

[NaderG]

i was wondering if anybody could help me out with theese stuff ... is there a roll bar out there for a celica ? or does it have to be custom made ? how much would it cost ??
note: i am taling about the plastic one , not the metal ones

also , i saw a mustang today with rear seat cancel , it looked nice and i was wondering if it can be done to out celis .. i will try to get some pics of that , but all of you with fiber glass experience : is it possible to buy one for another car and slightly modify it to fit our 6GC Verts ?

[NaderG]

I dont alot of research and i think i will have to do it myself from scratch first delete my rear seat and installing subs and amp in place while closing the back with wood , then , cut wood into shape and cover the top of it , then get big cubes of sponge ( or any similar material ) and try as hard as i can to cut out to "humps" to make curves for my headrests --> then , cut holes into the wood , place two shiny roll bars 9 one behind every seat) and somehow bolt them there or something ... then find some vinyl or leather and cover the whole thing with it ..... my problems are : the convertible top boot is soo big , so should i make my cover at the same level or make it go up at the edge OR just do it like the eclipse in the link above ??

i would really appreciate some ideas or help with mine , any siggestions are more than welcomed .... also , if all fail . how hard would it bo to modify this thing below to fit a celica but ofcourse i dont want to be spending that much money on it !

http://www.mustangunlimited.com/itemdy00.asp?T1=RC94+01