I have a standard 2018 Martin D28 acoustic guitar, for which I am looking to buy a sturdy molded case. Can you please let me know if the TLK 8710 will fit my guitar as well as the TLK hard-shell case (vinyl covered wood) that came with it. If not, can you tell me which of your molded cases would be best. Assuming that the 8710 and the 8710CSB cases would be best for my guitar, can you please tell me if are there any differences between these two cases, other than the color. Thank you.