If you're willing to keep both male and female of a species and not breed them I'd get those, breed once, enjoy the experience and see how you can rehome them then go from there.
I would also not breed veileds, probably I'd go for a Panther chameleon because they are popular enough to be able to find a home, yet their price is high enough for you to brake even or maybe make a small proffit, or a Jacksonii Xanth as they are great to keep, not to difficult and don't lay eggs.
I agree with
@Twitchet , chameleons have a reputation to be difficult, non-beginner reptiles so they will likely have less of a market than your entry-level reptiles.
It could be easier for you to start breeding a smaller entry-level reptile, like leo's, or crested gecko's.
If you decide to breed them it would probably be a good idea to hand the people a copy of a caresheet and maybe a link to this site so that even if they aren't that experienced you will send them away with all info they could need.