24" Miyata for sale or wanting to trade for a bigger wheel (28" Semcycle

I just bought a 24" Miyata standard. It’s barely been ridden.
I’m realizing I’m wanting/needing a bigger wheel.
I’m hoping to find someone that wants to trade a 28" Semcycle XL Standard
or something along those lines.
Also willing to sell the Miyata.

does it have the seatpost extension?

oh, and how much for selling, ( i dont have a semcycle, sorry!)