There are a couple carried by Accurate Armour too. The biggest being the LCT(4), which can hold 9 Shermans.
Here's a link
http://www.accurate-armour.com/showaaproducts.cfm?CFID=1083941&CFTOKEN=94496121&category=225
Of course by the time you got it to North America .... it would be somwhere between $800 and $900 bucks.
Happy Modelling and God Bless
Robert