I upgraded to the TV4RV tripod and wish I'd done it sooner. You'll also need the slimline dish, a SWM-3 LNB, a power inserter, a SWM splitter and sufficient RG-6 cable.
While you can use the signal strength meters on the HR44, I prefer using an external meter. Sat Pro sells the Tracker Light, which is adequate for your purposes. The cheapo (screaming tone) meters do not usually work well with a SWM system. The Tracker Light makes peaking the 101 signal easier, and that peaking is critical to having strong signals on the HD (99 and 103) satellites.
Before buying a package, you should explore through vendor websites and eBay whether buying the individual components is cheaper.