The main problem was the sleeves, the amount of fabric was not enough lengthwise, so I had to take two pieces out of the bodice back. This part was lined in a very thin green wool and was now used as cuffs, creating the nice effect of a contrasting lining when turned up.
And the entire bottom hem could be reused, so it was a really fast project. And since the dress was well used, the gown now has parts that are bleached by the sun, making for a cool worn look in the new gown. And as I now definetly was out of fabric, I allowed myself to buy more during Medeltidsveckan, when there is a huge market with lots of vendors present. So for next year the gown will be supplemented with a new doublet and a pair of joined hose.