Skoda Felicia Engine Swap.

I have skoda felicia 1.3mpi petrol engine.  Which small engine preferably 1.3/1.4/1.5 capacity can perfectly fit into this car without too much work? I am told in some of the swaps,  the shaft has to be joined , which can break easily at the joint. I dont want the shaft to be welded together. 

Second i need an engine which wont give too much problems. The one which wont consume too much fuel. 

Please help me. Am new on this platform. 

Edited 20 June, 20187 yr by Keken
Adding more information.