Waqas,
I didn't keep a record, but I'll guess: I spent maybe 5 hours taking it apart, 5 hours researching where to get things done and talking to possible painters and chromers, 5 hours driving the top and parts around between bead blaster, painter, chromer, and the interior guy. After the headliner and chrome rails were installed, I spent about 7 hours putting the chrome back on and the windows in. So my hours add up to about 20 or so.
But the painter and the chroming were by expensive by themselves, not to mention the headliner, seals, bead cleaning, and the headliner/rail installation. I chose high quality vendors in each case, but I paid for it.
The article by Gernold and the discusssion thread here titled "Hardtop Window Success" (George Des, Walter, Ben in Ireland, Alfred, and Luca) was invaluable in the assembly process, which went smoothly.
All in all it was fun. Would I do it again? Considering the total money... hmmm. Ah what the heck, probably, yes. I like the black over silver look.