I know what you mean but you end up with having to use catachan action men which aren't great figures really. I've swapped out robot legs with trooper legs and then gs'ed up the rags etc... Have two infiltrators on the table to paint so will get them done so you can see what I mean.
Re: necrons, yup, they are pretty hunched up as models, they end up towering over most things after a visit to the chiropractor.
With regards to T1's a fellow LAFFer sourced me two from the states and I've got them coming through as soon as he pulls his finger out and pm's me!
I may only need one as I've got one of those HK tanks coming as well so if you're interested I'll bear you in mind.
Vyper.