There are some sites selling German 1/2 Tracks in 1/16 ---
www.store-juckenburg.de
these people are selling two different types but they are both RESIN kits.
www.ludwigs-hobby-seite.de
These are quality kits but you provide the electrics and they do need a fair level of ability.
Neither of these dealers products are cheap but as I like to remind buyers in the USA you must remind any dealer in the EU that you are not liable for VAT(VALUE ADDED TAX).
Shaun.