I have done this trip twice in the past 4 years.
From Corinth.head for Aegina ..Poros and then a longish day to Kithnos ,the first of the Cyclades
.Avoid Merikha on the west of this island as it can be very uncomfortable ,instead head
round the north of the island to Loutra which is very sheltered.
Then on to Finikas at the sw of Siros,and from there Mikonos,avoid the main town and overnight in Ornos bay.
From there it is a straight run to Ikaria.Kirikos is a good stop,a working harbour but has everything you are likely to need.
for Fourni,Lipsi,Leros and Kos where you can moor in the town harbour and do your check out procedure from Greece
Do not check into Turkey in Bodrum..it is expensive and you will be ripped off.
Head for Datca aand use the guy at Setur tours who has an office on the road behind the harbour. He will do the transit log for you at a reasonable cost.
From there on you can make youyr way to Marmaris.
It can easily be done in 14 days from Corinth to Marmaris. BUT and this is a big BUT.. the weather in March will be very unsettled and you could find yourself stuck anywhere for a day or more. Also if you are time constrained you will miss out some great sailing places.