We'd recommend just hanging onto your 1,000 coins for now. Staff still has two months to get the donate-to-series feature going before those coins expire. If staff gets it done in say mid-December you can just donate the coins to your own series (or a friend's series and they could donate theirs to your series) and tah-dah you cashed out. In the meantime, watch as many videos as you can tolerate on the Tapas app. Those coins don't expire and you will be able to cash them out later via PayPal.
Currently there is no way to make a locked/paid page on your own w/out direct staff involvement. When donate-to-series goes live then any series can get income regardless of staff involvement, which is a game changer in webcomics. If you have hordes of dedicated readers willing to watch tons of videos and then pour the coins all over you like Scrooge McDuck, then blam you just found a money tree that doesn't cost you or them a penny (Tapas doesn't mind either since they get a commission on each ad delivered).
So if you have bought the coins, earned them via watching videos, or got them as a gift, it doesn't matter, you can just give them to yourself via the donate feature once it becomes available.
Details are still pending on the donate-to-series feature such as release date, coin to USD conversion rates, etc. The conversion will be at least 1,715 coins per $1 USD, if not greater.
Currently $100 USD = 120,000 coins w/ a 30% take out by Google/Apple. Therefore 120,000 / .7 = 171,428 coins.
But Tapas also does coin sales at 20% off, so the conversion rate could be even higher, 214,285 coins per $100 USD.
Otherwise highly enterprising creators could buy Google Play and iTunes gift cards at a discount (Black Friday is coming up, 10 to 20% off many prepaid gift cards), put that money into Tapas, then wait for a 20% off Tapas coin sale, then buy up big amounts of Tapas coins, then give all those coins to themselves and cash out via PayPal at a profit. Tapas will likely schedule their coins to USD conversion rate such so that this sort of process does not result in a net loss for the company.