SEA : migrate from VmWare to cloud KVM virtual environment.It's possible ?

now we have SEA ( V4.5.1.1) on VmWare (v.5)  enviroment and we need some help in order to megrate SEA on cloud KVM based .

using standard VM downloaded from Sophos's support portal   doesn't work because we have drivers problem , indeed from this article 

https://sophos.com/kb/119801 

reports the following  :

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Virtual Appliance

Sophos UTM virtual appliances are based on the software equivalent.

Sophos UTM is the first unified threat management product to be certified as VMware Ready and Citrix Ready.

It also runs in Microsoft Hyper-V and KVM virtual environments.

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But KVM seems only for UTM appliance and not for SEA VM   :-(((

Any help will be appreciated.

Cheers,

David