There's two great sites I'd like to recommend for those borrowing material from MERP -

Realms of Arda: detailed wiki of the 1640 TA milieu (with a bit more beyond) in MERP, including unpublished stuff (like my Lindon module).
&
Fan Modules: a site hosting files by fans and MERP authors expanding on the ICE corpus. Extensive and useful, though a bit hard to navigate.

The Lord of the Rings Adventure Game (simplified MERP) had a series of three modules set around 3009 TA that are considered high quality and would make great conversions for TOR as well.