Super Julie is a variety sold by Truly Tropical/The Mango Place out of Delray Beach and their website mentions they sell various budwood/scions as well, you could inquire with them. As for Ceci Love, I can't find that anywhere. It is my understanding the variety was developed by the founder of Mango Men Homestead. Their website says they are not currently offering budwood but you could send an email, nothing to lose.
Otherwise, if you don't have any luck on the fruit forum, join some Facebook groups and request on there. Its hit or miss but most people are willing to share/sell/trade. I'd suggest the Florida Tropical Fruit Growers, The Mango Seedling Exchange, Florida Food Forest, and maybe the North American Scion Exchange.
And at the end of the day, you could always try your luck with what Tropical Acres has in stock. Definitely the most reliable for healthy scions in my limited mango scion experience.
Best of Luck,
Dan