In need of creating a dog run. Home Depot has an example of what I have
in mind. CROWN BOLT LLC CHAIN DOG RUN KIT SKU # 274954 Internet #
100349311

The kit is 75 Ft length but anticipate needing 100-125 Ft. Wondering if
two of these kits can be easily connected to each other?

Along these lines would it be easier to obtain bulk vinyl covered wire,
connectors, etc., and create one from scratch? If so ideas of what to
ask for at either a hardware, big box, or other store would be handy.

Thanks