You don't need to transport the pole intact, and rental trucks can be really cheap for a few hours. You would just need to find one and cut it into more manageable lengths for the truck.

Since they're usually 30-60 feet, even on the low end you could easily get two posts out of it. For example, this one is 35 feet and about 640 pounds. Even cutting it in half is manageable for you and two friends (ideally 3 and maybe even some pulleys or other assistance).

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You might even be able to find somewhere nearby that you can buy them from, but for that you really might need to talk to a utility contractor, and at that point it's probably cheaper to ask if you can get one they're going to replace so they don't have to haul it away themselves.