Their brokerage has been down for a couple of years. Here is a list of their vendors from the Internet Archive...

http://web.archive.org/web/20120726015617/http://www.ontarget3d.com:80/site/Manufacturers.aspx

...some still are active here and elsewhere; for example, Touchwood sells here...

https://www.renderosity.com/mod/bcs/vendor/Touchwood

However, some of his products are no longer active, such as this tank, but he might have them available if you contact him...

https://www.renderosity.com/mod/bcs/a11-matilda-infantry-tank/87528

Good Luck!

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