FW Warhound titans size/warhound questions

[RunepriestRidcully]

I'm thinking of getting the warhound titans for epic from FW as they look cool, I'm doing a big order (2 armour sets) and passed first year! I am wondering how big are they? Also if I wanted to use them (I have the epic rulebook) which would be the cheapest way to go? Loyalist marines or chaos marines?

[Chaos and Evil]

I am wondering how big are they?

A cm taller than a 40k Terminator?

Also if I wanted to use them (I have the epic rulebook) which would be the cheapest way to go? Loyalist marines or chaos marines?

I'd say loyalist Marines are a cheaper army to collect.