Let us know if it works! I always had problems with kraken.
Right now I use BTC to Wirex Business and then to Transferwise. No problems with this way so far.
Another way I used a lot before Wirex Business was BTC to epay.com and then to Transferwise. Don't know your sums, but they just pay out if payout sum is higher than 10.000€ . Maybe this changed, because as I look on their page right now, their service got a lot better. They are also connected with advcash, pm, fasa and payeer.
Any more experience with Wirex Business? Is it a great service?