Where to buy longer lengths of rope for sport climbing?

A couple friends and I want to split a cheap 160m rope into 4x40m ropes just for gym use to extend our outdoor ropes' lifetimes.  I haven't seen anywhere that sells longer lengths of rope, where is a good source to buy one?

Maybe this?

https://sterlingrope.com/store/climb/ropes/dynamic/workhorse/phenom-103-mm

Michael Xiaowrote:

A couple friends and I want to split a cheap 160m rope into 4x40m ropes just for gym use to extend our outdoor ropes' lifetimes.  I haven't seen anywhere that sells longer lengths of rope, where is a good source to buy one?

30 seconds

https://www.atomikclimbingholds.com/climbing-rope-102-mm-1-1

Seems like you're better off just using an old or deep discount rope than the spool.

The best way to get a spool of rope for a discount is make friends with someone who has a pro deal. I also feel like gym wear is almost immaterial compared to outdoor climbing wear and I recall a lot of the boston gyms will give you a lead rope if you ask. 

Black Diamond 35m and 40m rope for about $100

Not sure what this post is getting at when you can buy a 30/35/40m rope off the shelf, or buy a 70m and cut it in half.  Whatever savings you eek out aren't likely to be more than $5-$15 per rope.

As someone who has split a 70m with one of my regular climbing partners --- one thing you might not consider is you may get the two ropes mixed up.  Food for thought.

Darren Swrote:

Black Diamond 35m and 40m rope for about $100

I picked up a 35M 9.9 for $75 earlier this summer. Great gym/home crag rope for the price.

How about 5 ropes instead? Cut this in 5 and they're $56 each:

https://fixehardware.com/index.php/roca-pro-gym-10-2-200m-spool.html