Tim Fusco of "Fusco Construction Yards - Battlemech Club" is a Tennessee-based modeller specialising in producing large-scale Battletech Mechs. The Mechs he makes are scaled to the old Armorcast Mechs, so fit in well with 1/60 or 28mm models.
http://battlemechclub.blogspot.com.au/
FCY has just opened pre-orders for the MadCat MKII, a 90 ton Clan Assault Mech. It's USD $135.00 plus postage, and will be approximately 25% larger than the Armorcast MadCat.
He also has available currently the Flea Mech, and the Deimos Omnimech. I think he might also have some MKII Vultures left. (?)
I've got 3 of his previous products, his Adder, Vulture MK II and Daishi. The models are really good
IMHO, easy to work with, good quality resin, and with good detail for the size (particularly the Vulture.) Tim himself is really good to deal with, and will go out of his way to help out if he can, in my experience.
EDIT - To give an idea of size, the Flea is 5.5 to 6 inches tall, depending on how you set up the legs.
Also, before anyone asks, no, I'm not affiliated with FCY in any way, just thought I'd share the news, particularly about the Mk II MadCat.
Here's some photos from his site (I'd put my models up, but my skills don't do his products justice):