if you are having someone else install this then you dont deserve either engines.. b18c5 is usually meant for better gearing on auto-x and track courses. the k series engine is just hard as hell to modify the engine bay and mounts so look at spending 10 grand if someone installs it or 7 grand if you do it yourself and set aside about 5 weekends for this project.
#1 your an idiot to pay someone $10,000 to do this swap. Or any swap for that matter.