That's a pretty big jump from stock and quite a large budget dedicated to AC cables. Just something to think about is that you can make your own cables for a fraction of the cost and have more control over experimentation with what works best for your system. There are endless debate on plating materials, cable design and even shielding (such as whether to ground at one end or both).
As an example, Supra's SPC 2.5 cable (silver plated copper) terminated with IeGO's gold plated copper plugs and shielding grounded to the mains side is an excellent cable and will be a tangible improvement over stock. Material costs are maybe $150, at best. Heck, you can even start with Viborg's plugs and see the different effects first. If you like the combo, you can go all-in on more exotic cables and plugs. Personally, I opted to add voltage regulation/power conditioning over pre-made exotic cables and happy with the results.