I just purchased a new to me stick steer, the other boat i have has 2 HDS Graphs on it, i am wanting to set up the stick steer with down scan on the trolling motor and sonar on the transom.. can anyone tell what parts i need to order and do i have to use the LSS1 with only 1 graph?

What HDS graphs do you currently have? If the bows HDS is a touch unit, then you can get an HDI 83/200/455/800kHz (000-10976-001, skimmer with temp. probe) transducer which will give you traditional 2D sonar and downscan. If all you want off of the transom is traditional 2D sonar, then you can get either an HST-WSBL 83/200kHz (000-0106-72 skimmer with temp probe) and mount it to the transom or a PD-WBL 83/200kHz (000-0106-73 puck, no temp probe) / PDRT-WBL 83/200kHz (000-0106-89 puck, remote temp probe) and mount it in the bilge. If the units are non-touch units, then you will need either the StructureScan module or a SonarHub and an LSS/HDI transducer for down/sidescan capabilities.

I have an HDS-8 Gen 1 and I have a HDS-7 Gen 2, Unfortunately neither are touch screen

Since the units only have one blue connection, and I'm assuming you're only going to run 1 unit on the stick steer boat, if so, then you're going to be swapping between the sonar and the DI transducer.