Right. My girlfriend just crashed my baby. Im looking at another fiesta mk5 but want advice on engine upgrades.

This would with;
a full 1.7 puma conversion with parts Gearbox, cambelt kit, belt tensioners and bolts, oil filter ngk platinum spqrk plugs.
220mm clutch replacement Kit.
Remap of some sort with torque limiter removed.
421 exhaust manifold system with decat pipe.
An induction kit.
Racing puma camshafts

Totaling £2685 fitted. But this puts it close to a st150 conversion. which opens it up to more upgrades later on. How much power could realisticly be created from the 1.7?

Are these realistic mods to add to the puma engine or useless. Will i gain anything from having the other things done and will these upgrades cause any problems? Im a complete noob to power mods so any info at all will be usefull. I just wanna break 140bhp while will keeping the car reliable. The puma lump alone at around 125bhp but its power to weight level on paper keeps it level pegging with the mk6 st already. Iim thinking the fiesta st mondeo engine will be heavy, the mk5s party piece is its handling and wouldnt want to compromise that in anyway.