I don't mind coming by once or even regularly... but since I'm in CEST, sometime around the timestamp of the post I quoted works better for me than the one you made last (that's 1:29AM for me XD)!
I don't really have a price but I'd love to exchange services: I water yours, and you water mine (there's about 60 flowers, in 12 fields of 5, that I'm trying to breed right now).