You're probably better off looking for used. Even the fiberglass sections from Stiffy (cheapest material) are >$200 each.

Maybe a collapsible might work for your limited purpose.

Superstick® Adjustable Push Pole 9’-17’ – Silent Stealth Fishing | West Marine

Maneuver silently with the Superstick® Push Pole (9’-17’). Lightweight, adjustable, & includes duck foot + gig attachment. Perfect for flats, lakes & mangroves!

www.westmarine.com

 

FWIW, I used an Adjustable Super Stick for a couple years with a little jon boat. I found any time I really leaned into it to push into the wind or got into some deep mud (or like you would have to do if you're stuck on a flat) the clamp slipped. So 17 feet quickly turned into 13, and it was useless. I got frustrated and got rid of it.
Others may have better results.
If you can deal with a one piece I have a used Moonlighter fiberglass I left with family in Ocala, FL last week. Price is definitely right.

https://www.microskiff.com/threads/moonlighter-push-pole.117354/#post-1119367

 

FWIW, I used an Adjustable Super Stick for a couple years with a little jon boat. I found any time I really leaned into it to push into the wind or got into some deep mud (or like you would have to do if you're stuck on a flat) the clamp slipped. So 17 feet quickly turned into 13, and it was useless. I got frustrated and got rid of it.
Others may have better results.
If you can deal with a one piece I have a used Moonlighter fiberglass I left with family in Ocala, FL last week. Price is definitely right.

https://www.microskiff.com/threads/moonlighter-push-pole.117354/#post-1119367

Appreciate all the responses. Also thanks for the offer on the Moonlighter you have for sale but I really prefer a multi-piece for ease of transportation.

 

I just bought this one for my duck boat, sometimes I get too deep in the mud and dont enjoy wading around in gator country. It seems to be built decent but too heavy for serious poling (5.5lbs).. for the $50 sale its a good deal I think. 12ft might be too short for your needs though, maybe you can have someone weld some tubing on the point end section for extra reach.

Drake Waterfowl

Drake offers hunters and anglers high-quality technical apparel, footwear, and field accessories essential for waterfowl hunters, deer and big game hunters, turkey hunters, freshwater anglers, and upland bird hunters. We strive to help make lifelong memories in the field and on the water amongst...

www.drakewaterfowl.com

 

You may ask guides in your area. They may have some broken sections that are long enough for you to use.

 

The super sticks have served me well. I’m on my second one with my second skiff. I use the 9-17’ version and have never had an issue. The one time it did slip was when It was new, I just tightened up the clamp about extra 1/2 turn and the problem was solved, And trust me, I lean on it hard.
I pole from my platform when I’ve got another person on board, but when I’m solo I pole from the bow. That’s why I really prefer the adjustability of it. From the bow I only need 10-12’ whereas on the platform I use the full 17’.
Our local bass pro has been more reliable on stocking them compared to west marine.

 

moonlighter makes a fiberglass 18 footer for $310.

don’t really have to worry about fiberglass breaking. It’s heavy but if you’re mostly taking it on boat rides. I’d be happy to help get one ordered for you if you’re local.

I also used a 8’ kayak stick to stake off my BT for a long time. Might be worth a gamble. Just slide it in one of your rod holders and forget it’s there until you need it.

 

Forgot to mention if anyone gets a lead on a two piece used carbon pole or other two piece options I'm open to that.