Best Bulk Cable

Kimber, VanDenHul sell bulk cable for home projects.
I'd purchase Kimber for speaker wires and VanDenHul for interconnects.

I was looking for ac/power cord recommendations not interconnects.

Google Neotech ac cable. A few places sells this pure OFCC cable in varying gauges, either copper or silver. Have used for years with great results on solid state and tube gear.

Audioquest4life

I've built a bunch of power cables. Here are some choices you might consider.
For amps I have used Neotech NEP-3001 & Furutech FP-Alpha 3.
For source I have used Neotech NEP-3002 & NEP-3003. For source I suggest shielded, for power you can go either way.
All the Neotech cables listed above are shielded, the Furutech is not.

I've tried various AC terminations but have settled on Furutech FI-11 for male ends, FI-11G for slightly warm and FI-11R for more neutral. The blades are plated copper, gold or rhodium. I like the price to quality ratio on these plus they're heavily built and the cable clamps are not wimpy.

For IEC ends I don't use the Furutechs because the wipers are plated brass and I attempt to minimize brass from the electrical path as much as possible. Try the Iego TI2000 8075 rhodium plated or TI2000 8085 gold, both models are plated copper available from acoustic-fun.com. They are in Taiwan but ship fast. Iago also makes solid silver terminations if you want to get exotic.

Any of the above combinations will give you a premium power cable but requires some work and patience especially the fatty cables 3001 and Alpha-3. The smaller thinner cables are much easier to work with. Make sure everything is hooked up correctly with a volt meter before using and enjoy. 8^)