WH40K - Bombard Battery from Forgeworld

I have ordered three (!) of the Imperial Guard Bombard vehicle kits from Forgeworld, because I want to make a siege artillery battery. They aren't cheap. (In fact they are outrageously expensive) but I have been thinking about them for quite a while and have decided to bite the bullet.

I have also ordered the Trojan support variant of the Chimera, and the Space Marine 'Air Defence Command Platform'. I plan to mount the dish piece on the hull of the Trojan, to make it into a Command Post vehicle.

In the new Imperial Guard codex, the same gun as the Bombard can be seen on the Colossus vehicle - which uses the Chimera chassis instead of the Leman Russ. Apparently the stats are the same (or similar), and this suggests that the Colossus could eventually become available as a plastic kit - a variant of the Chimera. However, I have finally decided that I won't wait that long. Also, I prefer the 'weight' of the Leman Russ chassis - it looks more suitable as an artillery carrier for a gun that big.

The Trojan suits my idea of a command car - the boxy hull is a bit higher than standard, something like the real life M577 variant of the M113 APC.

In the codex, up to three Colossus, Griffon, Basilisk or Medusa vehicles can be taken as an Ordnance Battery, in any combination. This encourages the modelmaker/collector to have a diverse collection, but I like the idea of a battery of the same types. In game, I think I could use the Bombards as proxies for the Colossus. The Trojan would have no particular game value, except possibly as a proxy for a command Chimera, or a Salamander.

As their main armaments are the big guns, which have a minimum range, as well as a maximum, they are actually vulnerable to close assaults. I think this weakness makes a more interesting game - they become as much an objective as they are a weapon.