Most shops are selling the warranty variant for between 87 and 95k.
Rumours are that there is no more accidental coverage. I heard about this when I went to buy another S8+. The guy said Samsung ended the contract and no more phones are being offered with accidental coverage. There is still a 1 year warranty you can claim through Samsung Pakistan, but if you break it, it's on you. I think it's because people abused the whole accidental coverage thing and were just using it to get free phones or free repairs when they didn't break it by accident, but deliberately.
As for replacing the phone quickly, I always thought this accidental coverage shit was a gimmick. Regardless of the warranty provider, whether it was GreenTech or M&P, or AirLink, they always take at least 2-4 weeks to replace it or repair it.
They're very slow and lazy about this and they really give no fucks about the customer and what he'll do without a phone for a month. Read the reviews on Facebook for GreenTech, very few are good reviews, most are crap.
Basically if it's going in for a replacement, they may replace your phone within a week. If it's going for a repair, 99% chance they don't have the parts (or equipment) (or labour) to repair it, so they'll say we're sending it to Lahore or Karachi and it'll take a few weeks to repair. Meanwhile, you can hold on to a shitty receipt and they'll call you whenever the phone is back, IF it's ever back.