That would be fine. The Sealant will protect your car and the wax will make it have a warm glow usually. I don't have much experience with wax, but DP Max Wax, Souveran, Fuzion are all good waxes. I have heard that Souveran is more for light colors such as your silver car. For the sealant I like Menzerna Power Lock.
For the polishes and compounds there are many routes you can take.I like working with Meguiar's M105 for a heavy compound then M205 for a lighter compound/polish to take out the hazing M105 leaves behind. Sometimes, on soft paints, and especially black cars I like using Menzerna PO85RD, but since you have a silver car I would think that the M205 would finish down nicely.
You can also get the new Meguiar's Microfiber system or even try some of Menzerna's compounds and polishes. Like I said everyone has a preference.
For the pads I would get Lake Country Flat 5.5 inch pads. I might get two 6 packs and go with 4 Orange, 3 White, 3 black and 2 blue. Each of them are used for certain things. For example the orange and white pads are for compounding while the black and blue pads are more for extremely fine polish possibly or a sealant.
You can also switch out a pad to get the desired "cut" that you want. So you can use the hardest pad (orange) with M105 or you can use a little softer pad (white) with M105 which will decrease your cutting power. This is good, because you only want to take off the minimum paint that is required to correct the defects.
Any more questions