I tok it to the Ford shop INSTEAD of Mondello. There was no reason to send it to mondello. As for the cost, your first paragraph proved the point, if its a common task on a common head then take it to someone who can spread the costs out. If its an uncommon task or uncommon head then any good specialist will see it the same. There are several out there who DON'T do a large volume- where they make their profit comes from only a few heads a week, those shops can be the best and the most expensive (sometimes they're bad and cheap though).
As for porting by eye, you won't get the best results but proper care and understanding can get you good results.