Nice job on them.
I have a pair of these that I use as Leman Russ proxies for my (GW) Imperial Guard army - I've never liked the LR tank - not since it came out in 2nd ed back in the early-mid 90s.
It's not big enough to fit crew, ammo and guns anywhere inside it. The ironsides at 28mm, do appear to be able to fit a crewman for each weapon, as well as ammo.
I've called my two "the Hammer" and "the Slammer".