Rhinoplasty surgery costs vary quite a bit among surgeons and based on the area of the country you're in. I wouldn't focus too much on cost and would rather work on finding an experienced surgeon who you trust and who's before and after results fit your aesthetic
Your tip can be improved with surgery. The bifidity can be treated using suturing techniques to remove the cleft between the tip cartilages. This would also allow the boxiness to be improved also. From the photos it's hard to tell if the projection needs to be addressed or not. A more formal evaluation would allow for a more detailed plan of what could be done.