Goldenvtr: I have no idea which model of Toyota this brakes are from to be honest, because when I bought it from the scrap yard, the bloke there told me that these are all the calipers from all over the Toyota vehicles that he breaks. I measures the bolt distance (131mm apart c/c) and also checked their discs diameter from the pile, base on my blind guess. Then, finally I took the risk of buying these set of 2002 model 02reg Toyota brakes with twin pots calipers 131mm bolt apart, and 5 holes 277mm x 27mm discs. They are quite new as you can see from the pic. I think I might give that Prius disc a trial if it also fill the gap in the new calipers.
Damage (Danny): Those brakes are not from any ST165 or 185 Celica as I can see some writing on them by 02 reg (2002), Toyota. They are as new from appearance and the discs are 277mm x 27mm with 5 holes pattern. The centre bore is 55mm which match with our EP82 later model. Their pads is much longer than the standard one too. If I can't place the caliper carrier behind the hub bracket, then I will need at least a 10mm spacer behind the new discs, and extended wheel studs (+13mm) from Ebay. Hope everything will turn out easier once I sort it.
Oh, also I have got a full set of rear hub, brakes and cables from a breaker here. I will refurbish them and put them on as well. So, basically the whole brakes, which is crap, on my EP82 will be replaced looking by the end of this month.