I dont see what the difficulty is in doing a honda MTL swap, but i know that honda MTL is much more expensive, so that price will not include the gear oil.
I have broken many a transmission, and messed with many.
I have a brand of transmission fluid that i use in the Nissans that not only reduces synchro grind and shock, but it also seems to keep them from spitting it out the vent ( like many do when spun past 6000 rpms repeatedly).
Just gimme a call and i'll set it up for you.
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Advocate for the People's Republic of Awesome
rest in peace tim.