The DSR-410 is a good option for you if subscriptions are your main goal! Review what's available so you know whats "up there" for you. Not everything's on W-5, but much GOOD stuff is! I bought a used DSR-10 on Ebay, did a "master reset" of the receiver, attached to aimed dish and called SRL. They did not charge an activation fee! There's a thread here on the site if you search for what SRL plans to offer in packages after January 4th. Its more flexible than what skyvision has packaged now through SRL.
As with any used equipment you risk age, battery life, etc....but, the receivers I ordered used all came in great shape with remote. My understanding is that the data stream for subscribing to multiple satellites through the Motorola system with a 4D receiver is being shut down. The data stream for W-5 through SRL has been available for some time via a DSR 410, or, after January 4th by converting a 4D receiver if you already have one. The easiest route? for subs.....DSR-410. Still C-band quality!
I'm no expert on the aiming, I had my dish already on W-5 fixed, but...there's a GREAT on screen signal lock screen in the 410's that may be of help. I don't remember much FTA on W-5 in my limited time with my Pansat....
As for how long the W-5 SRL system stays going? Depends on subscriptions, I guess. I'm unclear......SRL told me there were 900 "current subs" when I activated, but....I don't think that includes the cable systems that use the 410's as add-ons to customers. Anyone know that info? (but an investment in a good C-band dish will pay off in FTA for you in the long haul, anyway!)
My opinion and a buck or two might get you a cup of coffee, but hope its of some help!