I'll say simply that you are a moron if you buy Wahoo's desk when multiple options exist at a tiny fraction of the price.

https://www.dcrainmaker.com/2021/03/kom-cycling-trainer-media-deskreview.html

https://www.dcrainmaker.com/2022/02/lifeline-trainer-pro-trainer-desk-review.html

https://www.dcrainmaker.com/2020/09/rad-lifeline-conquer-cycling-trainer-desk-cheaper-wahoo-desk.html

and, an ANT+ extension cable is just a USB extension cable which is competitively priced at $6USD from amazon.

You can also find plenty of perfectly serviceable trainer mats on Amazon starting around $30USD.

Ah thats unfortunate. I hate to say this but you could buy an extension for the cable, or use an extension cord from the outlet

AmazonBasics USB 2.0 Extension Cable - A-Male to A-Female Adapter Cord - 9.8 Feet (3 Meters) https://www.amazon.com/dp/B00NH11PEY/ref=cm_sw_r_cp_apa_i_e0d7Cb5ZA5XPA

Fortunately they are cheap