How hard is it to do a GOOD job of dyeing canvas? Like, sailcover/dodger?
Very hard. Pretty well impossible to get a completely even coloured result. The fabric
will have absorbed things, the chemistry of individual fibres will have changed. Even if you have a large pressure vat like a professional dye house, you are not likely to be too happy with the result.
Easier to cover the existing item. Lay out each section flat, make a pattern and then tack it on to the original. Pay attention to the fabric
Good Luck. ! HOpe things work out well