Convert from Petrol to EV

So I have a Toyota Ractis 2008, i cant lie, friggin love this car, its fun to drive, has a sport mode, and its my first car so has a special place in my heart, but the car has terrible petrol inefficiency. Its got a triptonic transmission and it burns petrol like no tomorrow on short journeys. I can afford to sell it and get a leaf (but i hate the look of it) or get a BYD Atto 1(but never really knew the brand till recent so trust is not so good) I dont want to part with the car so I figured to convert it to EV, reason being I have gone completely off the grid with my power and installed solar panels, are there any mechanic shops that can do this in Sri Lanka? Reliably? I want to keep the car and just change it to maybe hopefully a 200 km battery but otherwise anything that fits the budget.