Have you considered your own coil pack relocation?
You can buy a roll of quality 7 or 8mm spark plug wire,(in several colors), both crimp-on ends, boots, and crimping pliers.
There are only 2 wires to each coil, and they would be a simple solder and heat shrink extension.
There are a few bolts around the battery, passenger side head, and alternator, that a hardware store bracket(s) can bolt to for the coils too.
I have seriously considered it for a long time now, and will likely do it at some point.

 

@Sixpack577 I did actually, but with luck this work will last for for a good number of miles, and as it is a second vehicle mostly use for of road work it gets pretty low miles per year. On top that I am 62 this year so if the Disco goes another 8 years I am pretty much good.

 

I put Castrol Purple Power in my parts washer, came out nicely.

 

Purple Power, Simple Green, toilet brush and elbow grease