2.5 sold state computer drive (upper east side)

Hello all, senior citizen on a tight budget, and hoping someone in the manhattan area has a gently used 2.5 solid state drive sata3 256gb or larger that would be compatible with my older iMac I have been using a external usb ssd drive in a sata enclosure and it has died..perhaps you have upgraded or have one no longer needed.i would gratefully pick it up any where in Manhattan close to a bus route during daylight hours can not use the subway I use a walker and the stairs are a challenge, Thank You for your consideration!