349H

[Ron Jones]

Sorry, I meant height. The 349 is similar in spool diameter to a 6/0. The 349 also uses a 113 gear sleeve. I don't believe it would be difficult to put 113h guts in a modified 349 plate to get a 4:1 349. I fished with mono for decades and recently started using braid. It gets to the bottom much faster and is more sensitive. It is what I use. All of the upgrades you list is why I think this is a good idea.
Ronald