If you're close you could finish your commercial SEL/MEL well under $10k including DPE fees. Theres a couple different ways to do it depending on what you want most.
More multi time? Go to Action Multi Ratings to do their multi commercial initial $6900+$500 for DPE then do your SEL add-on close to home in a 150/172 in 3-4 days.
Action Multi Ratings - Multi Engine Training Specialists located in Groton, CT
SEL first the MEL addon? Go to Livingston Aviation and knock both out in about a week for around $6500.
Flight Courses - Livingston Aviation