There are a couple of pretty good 2L crossings in the YARN series, or search the forum for ATLS, a system that allows any kind of grade crossing you need to be kitbashed from a series of parts...
SAXT has had crossing plates both rubber and concrete out for some time. Just look in our available content section in either scenery or content. You can follow the link below my sig to get there. Also you do not have to a member to down load any thing from SAXT.