Hello Dreadtober-teers, thanks for dropping by. Here is the fruits of my labours, thanks for the encouragement along the way! So, meet "Eddy" Deredeo Class and "Fury" Furibundus Class Venerable Dreadnoughts. 
A big thanks to Joel (Mordian7th) for keeping the hobby event alive for another year! And thanks to the founder Greggles, and Joe B and Todd (Sincain40Kfor their contributions over the years. And a huge thanks to all the contributors who make this a great success!
"Eddy" has a STC double shot firing Lascannon (Dual Lascannon) and Dreadnought Close Combat Weapon with Stormbolter. "Fury" has a Missile Launcher and STC Lascannon. I will be playing both of these as Venerable Dreadnoughts, quite fitting for these relics of Rogue Trader era.
As for height wise, here is a comparison between the old metal RT era Dreadnoughts and the modern plastics, the Venerable Dreadnought. I only have friendly games so I am not worried about modelling for advantage using the smaller ones.
And here is a shot of the whole Dreadtober collection so far, from 2016 a modified plastic Contemptor; in the centre a Forge World Deredeo with Autocannons and Missile Launcher and SM casualty on the base; from 2018 a Forge World Mk4 Ironclad and finally the two RT Dreads.

Cheers all, thanks for looking and cheers for your support, Siph.