Agreed with the other anons, probably cheaper to primal vial an already-cute g1 (500kt but guaranteed result) than sink [350g x ?] on your hatch until you get a combo that's A) good and B) works with the element.

Then again, g1 projects in general are all about personal fun and satisfaction. If you would most enjoy working on making your lucky hatch the best dragon it can be, I'm not going to tell you you're FR-ing wrong.