FYI -
Mimosa in Los Angeles has sale on Lychees.
15 gal is for sale $100, original price $200 (5-6 feet tall). They have sweetheart, Mauritius, Brewster.
7 Gal is for sale $90, original price $180 (36"), too damn expensive compared to 15 gal.
3 Gal on sale for $50, size of some are better than or within 20% of 7 GAL. They have Kaimana.
I picked 15-gal Brewster and 3-Gal Kaimana. I will fancy my chances of growing Kaimana in foothills of Corona, 1200 feet elevation, I get decent chill hours too.