Well, nothing is indestructible but if ya start out with the best parts you can the finish product will show that.
The wires only come in black w/yellow lettering (FireCore50) on them.
The best thing to do in the case of wanting some made to custom lengths is to make measurements for us to use. Do you have at least one wire that is long enough to reach the max length you'd run into? You could use that one to determine the length needed to reach each plug. You could possibly use some vacum tubing to determine the lengths too...stick the tubing on the cap and route to each plug, sticking the end of the tubing on each plug end....and then measure the lengths.
Off the shelf sets run 105.00....add in 30.00 for custom sets as well as 9.95 for frt in the lower 48 states.
I will cover the Ground UPS for the lower 48 for off-the-shelf-items.
Let me know if we can get ya set up!
ps....the BIG mm competitors sets were haing to be replaced after just a few passes...our 8.5mm sets have gone over 20 times longer so far (still going) on a blown-alchohol setup!
Glory Days Racing