1700 is doable for sure. I make about ?2000-?5000 a month working 5 days a week. Put aside some cash for adverts (?100 on vivastreet, feature, available & local search on adultwork & ?30 on backpage) < works fine for me. Although the last thing you want to do is part with ?200 you will be so thankful you did. You wont have a dull day. Consider making some content on adultowkr such as videos (make about 10, you'll make an extra ?400 a month)
?1700 is a slow month for me. Weirdly i did work everyday for a month the first month i started, but as long as you know it's not maintanable only for emergencies but ?1700 isn't even full steam ahead, i suppose it depends. If it is sounding like a lot of work for you, try not to overdo it, you want to give a good service over bucket loads of money else you'll jepordize your future earnings.
Have a prep week where you get towels, supplies, your favorite shower gel, condoms laid & even planned outfits out etc. So you don't have to take time out to restock on the mudane things. If your set for a month it'll save time.