i havent made up my mind yet. i rode hard tails all my life. but lately i find myself into more and more coplicated trails... and i always said "i can do it just fine on my bike"; but... i think i cant anymore

).
so i found it on a forum, the guy asks 1400$ US. im pretty sure it is negotiable. as i said, i havent made up my mind yet; my knowledge of ENDURO/DH/ALL MOUNTAIN isnt spectacular, and that is why i posted the pic here. i want to learn about the frame, and everything else that this bike has on it. i asked the guy about some things (he put a very superficial description) but he seemed to be a more of a noob than i am
so far so good, i managed to ID the crank (shimano saint), the fork is a fox 36 (fit ... smthing) brakes, some Avids, cant see what exactly; rotors also avids - i believe 180 rear, 200 front. hubs "veltec" (?) the spokes are in the way, cant see. the shock as kevin said, a fox model, the rims smthing "Singletrack"; the bars have "Sunone" written on them, and the stem a truvativ husselfelt.
the pics arent helping very much, if ill post them can you guys help out?
also size, very important; he states 48cm frame, that is 19.2 inches in.... catholic (whatever

) i am 1.86m, that is about 6.1 in... protestant

? my inseam... realy dont know for sure, between 80-90cm. not very familiar with enduro geometry, is this a good fit for me, or should i leave it alone?