I should add that if you need to do 83 miles a day and you can do it without undo stress then do it. Especially if it makes your whole trip works and makes you happy. But if you need to cut it in half to be comfortable with the miles then do it, even even you need to cut your trip. A lot better doing a short trip when you come away happy than a long grueling trip where you accomplished your goal but come away miserable.

Then again if reaching your goal is what makes you happy then do the miles and don't worry about the discomfort. The point is only you can answer what is right for you. What others do really does not matter all that much.