This is my first post, so go easy

I currently have to look at doing a lot of P2V/V2V work, in the order of 300 - 400 hosts.
Now I was looking at Platespin as it seems to do what we want. Specifically, it allow a v2v across a stretched WAN. For example a lot of these migrations are from the east coast to west coast type scenario. Platespin allowed us to do a P2V/V2V and choose a cutover point, ie 3 am on Saturday when no sane person is on the web

The problem with Platespin is that it's long term viability is in question, as it currently doesn't support version ESXi 5 and there seems to be no one taking care of the product.
Now I see that Veeam has a replication capability. Could this be used to achieve the same end, ie have a continuous replication going and then stop the replication and bring up the guest on the destination host as the live master? I realise that P2V across a stretched network is not going to work, as the physical guest cannot use the replication as it is not yet virtual.
Part of the appeal is the minimisation of downtime, that is measured in big $$$ at present.
I am keen to hear from anybody that has used it in this type of scenario.