can't say for sure but..
Midlam Miniatures (www.midlamminiatures.co.uk)
might be a little on the tall side.. they mostly measure from foot to top of head being around 28-29 (depending) so.. mm..
Maybe forlorn Hope (www.forlornhopegames.co.uk)
Don't buy much undead so hard to really say..
If you don't mind that complete LACK of scythe's, Wargames Atlantic do a box set of plastic kit build 'greek' skeletons which compare fairly well (though not perfectly of course) to the old Skeleton set.
Those Wargames Atlantic (ex Wargames Factory) skeletons are awful to build. They're so spindly they break as soon as you look at them. My own favourites are the Celtos ones front Brigade Models, but they are chunky. The bones definitely wouldn't for inside those living humans even if they are ok height wise.
I've not tried the Wargames Atlantic minis (the sprue looks okay assembly wise), but they are different from the ex Wargames Factory ones. The current licence holder for that mold is Warlord Games and you can have 90 of the fiddly little gits for the sum of £63. Those are indeed "fun" to build as I have about 150 of them (some here if you want to see), but with some liquid cement (EMA plastic weld is my choice) and a little patience they are okay to assemble. That said I'm not sure they would stand up to rough play. They are pure Ray Harryhausen in vibe however and I rather like them.
ha ha ha, omg what a nob.
I have some wargames atlantic ones, I bought a sprue to test them out for Mordheim.
Just had a look, yeah they will do fine.
Easier to assemble than the ones with separate feet and stuff too.