Just adding a SWM8 kit to the SK-3005 should do it. There's nothing special about the Genie 2 compared to the Genie as far as antenna connections are concerned.
I assume you know that the Genie 2 does not connect to a TV so you need the Genie 2 plus a client for each TV.
Did you happen to ask Winegard about the SWM8 kit? They sell it but parts can be found for less online. Be sure that you use the PI29 power inserter. It's possible this could be the complication. I am not sure what power inserter is built into the Genie 2 and if it will pass an external power supply like the standard Genie will.
What I post is my 2 cents and nothing more. Please don't read anything into my post that's not there. If you disagree, that's OK.
Can't we all just get along?