engine swap

we run 1.2 kangoo lpg. recently the engine has lost compression cam belt broken bent valves etc. now instead of replacing head and cam belt costing 400 pounds including labour. does any one no weather d7f 800 engine from twingo will fit and is it the d7f block and head the same across the Renault range, i will be using all original bolt on parts from d7f 726 engine.. has anyone done this many thanks older elder