Hi, yeah i know =) i cannot believe how often its recommended across the board! its not cheap if its useless. its ok for interconnects and for fullsize headphones if you add damping and sleeving to try to avoid the microphonics, but for stranded its stiffer than most suitably sized solid core, so i wouldnt use it for that either. for ICs its ok.
sorry no that stuff from VT4C is the most suitable i know of for a reasonable sum. There is one other, Mogami W2444-0X or W2943, which are 32awg and 28awg ultra mini coax shielded copper cables, but good luck finding it in small quantities. you might be able to get a smallish amount at Markertek.com, but their site is undergoing maintenance so i cant check. you also only need to use 2 lengths as its coax, so use the stranded copper shield for ground. its as flexible, or more-so than the stock cable, shielded and copper rather than tinned copper tinsel wire. but yeah most places only sell it in 1000' rolls. you could also look at their 2 conductor shielded twinax W2490-08 (32awg 1.7mm diameter) and W2794-00 (28awg 2.3mm diameter) which is just enough conductors, but really i would recommend either 2 x coax or W2769-0X (32awg and 2mm diameter) or W2929-00 (28awg and 2.7mm diameter) shielded ultramini quad from the same series as its best to maintain a separate ground/return for each channel. not the mogami mini star quad that gets recommended here a bit, thats too thick for iems imo.
good luck!!