I think that you will find a lest for the jobs you cannot do on the thai embassy website so start on there and then you can have a good idea of what you need to do to get your job
rubbish my Bangkok bank has a lot of people that can speak English and understand, as for tilling them want it is that you need it's not a problem as for standing in a line that's no longer a problem with immigration just book a appointment and turn up 10 min before your appointment has been made