[Engine] Wiring loom question

[Bigmoose]

Now I had an issue with my car going into limp home mode and not starting. I looked at the wiring loom and found multiple chaffed wires where it enters the protective sleeve. I have patched it up, but it lasts a week or so and then we are back to square one. 

Now my question for you lovely, helpful people is....

What is the best course of action? Do I splice and rejoin the wires or do I try and get a new loom, and if that is the best solution, what moolah am I looking at (assuming you can fit it yourself).

I know I am new here and have had a couple of cries for help, but I promise I am not a pain in the arse    

Now don't get me started on the steering issues. I have a £200 Citroen C5 and a 1973 Citroen DS which are both less trouble that Betty Blue the Berlingo. 

Thank you ladies and gents.

[Yorki]

I would splice new wiring in using heat shrink terminals. I would think a loom will be a few hundred quid

[brajomobil]

Cut wire. Solder it. Then heat shrink over it.

Best regards,
brajomobil