Sliding genioplasty followed by chin implant later on? Would like my chin to come up to my lower lip or just slightly behind.

Hi I would like my chin to come up to my lower lip or just slightly behind. I don’t think the maximum projections of either a large chin implant of 10mm, nor a genioplasty on its own, would rectify the issue. (Or perhaps they would?) I don’t have X-rays to know exactly what my deficiency is, but I think perhaps I’ll need to have a genioplasty and then once it’s healed have a 10mm chin implant placed. What do you think? Thanks!