Sounds ok mate, nice easy pace means u will recover fine I'm sure. Like I said its each to there own, some people like it 2 wks before but I wouldn't recommend it unless you were 100% niggle/injury free.
Personally in the last 2-3 wks I find 4-6 m is enough, maybe one 8m but during that I may run 2-4x 800 at 10k pace with 400 jog recovery, it's all about staying sharp but fresh. I like to do a 10k the wk before if I can find one, stretches the body out, clears the lungs and makes marathon pace feel easier....ish. Next sun I've planned a 7m race, warm up well and down and should recover fine for race day.
Although I am a hipacrit a lot! I've done loads of back to back and gone quicker 6-7 days after the 1st, funny how it works sometimes. My PB was London this year, stinking cold, 100m bike ride 3 days before as i was training for Outlaw triathon and a 2.52 at Taunton 3 wks before that, i went there and did 2.50.38, dont get it so see told u I was a hipacrit. But I think the more marathons you do is a valuable tool knowing how your body feels and knowing to react fast by listening to it.
Another tip that's helped me, all this carbo load rubbish eating for 3-4 days or week leading up is bad! All you do is get to race day feeling like Mr Blobby, eat normal right up till the day before and snack more often during that day, it's only a marathon and will only burn 3-4000 calls max so we don't need to consume 10-15000 extra during race week. Snack what you enjoy and a treat the night before, I love bread rolls, and look forward to a bag if mixed salted nuts night before, that's half the race call's right there in the nuts.
As always each to there own, but that's me.