Looking for Epiphyllum oxypetalum.
In exchange I can offer you rooted plants of:

Epiphyllum hookeri Haw (syn. Epiphyllum stenopetalum (C.F.Först.) Britton & Rose), Climbing Night-blooming Cereus with huge 7-inch white flowers that have carmine-colored styles. This one has no fragrance but does set small magenta fruits.

Epiphyllum pumilum, Dwarf Night-blooming Cereus. Adorable in all its parts and stays small; leaves are pointed; the abundant flowers are exquisite and sweetly fragrant.

NOID Epiphyllum cultivar. Orchid Cactus with beautiful form and to-die-for hot pink flowers. Click on the link below for a picture.

Fishbone Cactus, Cryptocereus anthonyanus (syn. Selenicereus anthonyanus). Funky zig-zagged leaves resembling a cartoon fish bone; intricate pink and white flowers.

Here is a link that might be useful: Let's swap...