I regularly repair mazdas here. Pakistani mechanics in Pakistan will destroy it even if parts were available.
e.g. to remove radiator from a 1st gen mazda 6 - you have to remove bumper finisher, bumper filling, bumper support, mudguard liners, headlights, complete radiator support (janglaa) and bonnet lock too.
To change starter on it, you have to work by braille through the space opened up by removing air filter box - meaning you cannot see the starter, just feel it by fingers and then use small 1/4 inch and 3/8 inch ratchet and sockets.
It takes me 30 minutes to install starter on it and 1 hour to install radiator though as I have small tools and also powertools and have done it dozens of times Inexperienced guy would break half the stuff
btw - there is one air bleed hose on the cooling system which if you dont route properly can blow the headgasket on the engine, LOL