A k12 1.4 has 88 HP. And if i remember correctly has drive by wire. And the EPS had something to do with the immobilizer. So alot to swap and alot of work and wiring. A good mechanic just wont do the swap as its way to much work and will cost way to much.
Then get the coilpack engine from a k11 (2000-2001) and not from a k12. The k11 engine will bolt straight in but you need the box, loom, ecu and nats stuff. A good mechanic can do the swap in a day/day and a half. I don’t know any mechanic near London that would do such a swap. If you’re handy yourself you could do it yourself and save a lot of money