i just wouldn't offer paypal, name a deposit amount and direct deposit into your account which would see if he was serious plus include a monthly payment plan, thats if you want to go the layby direction, personally I wouldn't, but a had a few attempted scams via gumtree and just don't bother anymore.
Tend to agree - I have a special account I use for internet only stuff that holds nil otherwise, wouldn't use an everyday account if you do decide to go that route.
+1 big time. A lot of scammers are just looking for your full name and account number so beware