Try payloadz.com - they auto-link to paypal, basic account is free and your customer will be able to download book automatically, it cant get better than this :

Try payloadz.com - they auto-link to paypal, basic account is free and your customer will be able to download book automatically, it cant get better than this :-) you can go on vacation and dont even have to check emails but pls keep checking bank account :-) --- alternatively you may also try selling your ebook thru clickbank.com ... GOOD LUCK