Firstly, Get some pics up so we know exactly what you're talking about.
Here's my method, it gives tabletop standard results.
Step one, base coat of a dark brown. I use scorched brown, drybrush a mix with bestial brown, then bestial brown, the drybrush a mix of bestial brown and snakebite leather. Then brown ink, then a final light drybrush of the bestial brown snakebite leather mix.
Of course there are different browns and different effects because of them. Some more reddy, some more orangey etc. I agree about chestnut ink being a bit orange.
You can have very simple effective basecoat, drybrush, ink, drybrush schemes that look nice. Just practive your drybrush technique so thats its effective and not too heavy.
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