was wondering due to a random ebay trawl how stuff like http://stores.ebay.co.uk/wildcatsmodelsuk/LIVE-RESIN-1-35-/_i.html?_fsub=23710684017 holds up, I have a few ideas or weapon conversions out of heavy weapons maybe even the multi part m4 as a bolter type gun for some of the smaller figures in my collection.
I have ideas for that dual minigun to be honest but with the price it's a bit much to punt on an idea without experience.
1:35 weapons are probably too small. They'll be about the same rough dimensions as GW's 28mm weapons, but more spindly.
On a slim model, you might get away with the heavier weapons as something a bit more modestly sized (e.g. a Barrett M82 as a slightly less intimidating sniper rifle), but even then I'd be wary.
(I know in the past that Kaled commented on having bought something around 1:20 scale and found it to be too small for GW's Inquisitor models, but I can't remember the exact quote).
I like the idea of the miniguns being something cool and the back half of the m4 on the two part set.