double roller chains, probably more than you care to look at, here for far less than your top price;
http://www.summitracing.com/search/...small-b-windsor?keyword=timing chain sets
http://www.summitracing.com/search/...small-b-windsor?keyword=timing chain sets
Jeff- for what it's worth I bought the FRPP adjustable one for about $90 when I did myu HCI swap a few months ago
http://www.summitracing.com/parts/FMS-M-6268-A302
http://www.summitracing.com/parts/FMS-M-6268-A302
I used this one on mine. Looks to be the same one posted above.
http://www.latemodelrestoration.com/item/M6268B302/Ford-Racing-289-50L-58L-Roller-Timing-Chain
http://www.latemodelrestoration.com/item/M6268B302/Ford-Racing-289-50L-58L-Roller-Timing-Chain