erm I dont have parts of him but you might find ( from time to time) from the ebay store of seller therawhyde - linky - http://stores.ebay.com/therawhyde00-...e-Transformers

he doesnt overcharge and specializes on parts selling most of which are BIN priced so you wont have to worry of anyone outbidding you (ive been a constant buyer to complete my G1) and has an option of cheaper postage cost - just ask him first. Havent lost a parcel from him ever and Ive had heaps of parts sent from him. Hope this helps

from his listing
Starscream pair of launchers
http://cgi.ebay.com/Vintage-G1-Trans...item4840bb0817
missles - short
http://cgi.ebay.com/Vintage-G1-Trans...item517ebeac20
fin
http://cgi.ebay.com/Vintage-G1-Trans...item23046de45a

well I didnt bother to look further as there's 28 pages of parts. :P