I take it from the names you're mentioning that you're in the States somewhere, so my knowledge of suppliers in the UK won't help you much. What you need to look for is either a local complany of reasonable size that does alarms and access control and which wioll also sell you the parts, a good electrical wholesaler or a national electronic components distributor (in the UK we have RS, Farnell etc). Your basic plan is good; you just need a reliable and helpful distributor
