Yup. Been watching those for a couple years.  May end up getting a couple of those sometime soon.

Was thinking this morning of how cool it would be to just do parts in resin so folks can kitbash the mecha the way they want it. 

Just do half dozen different feet, lower legs, upper legs, waist, upper torso, upper arms, lower arms, hands, heads, and about a dozen guns n missile tube/boxes and end caps for the lower arms for like missile launchers or energy weapons.  maybe even some jet exhaust port type bits...

I've actually done a couple of scratch built mechs for battletech.....
Not that they are of professional quality...... but it can be done.

Definitely going to be getting Wardogs as soon as I have finances free.

Nahuris

How tall would these 'modular mecha' need to be, overall?

If you're looking at various unit sizes, then it becomes a bit more complex...at 6mm a PA trooper is about a quarter inch tall...where a size 10 unit is going to be about the size of a large CAV figure...with CBT mini's falling in the 4-7 range.

These same minis can be had from Nexus and also from Red Shirt Games in Canada.

They are reasonably generic and will work with 2m to 10mm figures. being very large with the former and quite small with the latter.

Measuring sole to crown they are all in the 35-40mm range.

I am already considering ordering a pack or two, along with some styrene shapre, beads etc, and Alumilite resin to cast up some conversion bits.

Even a simple division into legs/torso/arms/weapons would allow for quite a bit of variety in assembled models.

As far as scale, avoid any dead give-aways like open crew hatches and they could be any size/scale. A "cockpit" canopy could just as easily be a sensor suite canopy.

I usually scale mecha relative to each other rather than anything else on the battlefield anyway.

I found out about Wardogs a few weeks ago. After finally getting thru most of the demo rules, I've made plans to get the printed book. I have many Giant Robo rulebooks in my collection and Wardogs is definitely on my must snag list. After playing CAV, I was estatic to see lock on rules. I really love the fact that Wardogs appears to let you make any kind of mecha your heart desires which lets you play Battlemechs vs CAVs vs Mobile Suits vs Gears. (unless I missed something)  At any rate, when I saw this post, I instantly thought of my collection imiatation Gashpons. They were 50 cents a pop and I ended up taking about 8 bucks in quarters and dumping them into the machine. I haven't seen any of the machines around any more so I started looking online to see if maybe I could find some on ebay. Anywho, I stumbled on a site that had them here. http://www.specialtystoreservices.com/product.aspx?category=3231&link= They are really neat and look like they could be painted up pretty easily, but I leave mine unpainted to keep they're gashpon feel. As far as scale, They're probably closer to 6mm. They fit in well with Battlemechs or Exo Armors (Jovian Chronicles, think mobile suits). In comparison to CAVs, They're almost as tall as a Vanquisher (by that I mean the cockpits are almost level.) Unfortunately, the only way to get one or two to see if you like them is to luck out and get them from a vending machine from a dollar store or supermarket.