Converting Sicaran into Sicaran Venator?

[infyrana]

Ok, so I own two Sicaran battle tanks, rule of cool overruled my decision to add variety and pick up a Venator when I was buying them. I simply did not realise just how potent the Venator would become in any basic list at stopping heavy armour. Unfortunately with my pennies saving for a Leviathan (a dreadhead can't miss this), I still can't help but feel a single Venator would make my worries go away when dealing with heavy stuff.

Has anyone thought of any suitable ways they could convert their standard Sicaran into a Venator variation? I could easily remove the top turret and cap it with some sort of custom plate made from left over rhino parts. But the low profile cannon (my HBolter assemblies are glued) is where my creativity skills fall short. Even some sort of plate that covers over the frontal section and incorporates a box shroud with a pokey tube might work.

So please, I'd love to hear your ideas for making a Venator barrel conversion which I hope could serve to help anyone else in my situation! Thanks in advance

TL:DR: Have Sicarans, want a Venator, looking for cheap alternatives at converting one Sic' to a Ven' please.