I'm glad you labeled this as tentative, because I think there's room for improvement on both budget and weight. Budget is important because you're going to need to reserve money for replacements due to wear (3 more pairs of trail shoes, for example), breakage, and things that just don't work out for you.
Note that my pack is the same price, more capacity (which I put to use for my not-so-compressible synthetic insulation), and 12 oz. lighter.
$69.95 for the mummy version at backcountry.com, but you can find a no-name equivalent
here for $28.99.
You can probably do with 2 pair of these (I got my 2 from Massdrop) and a cheaper pair of ragg wool socks for sleeping.
I went with random sales finds:
Duofold Thermamatrix shirt for which I paid $6.75, and
Weatherproof Thermafleece pants costing $12.74. You're going to sleep in these, so the name brand isn't going to matter.
I bought Yukon Charlie's Trek Lite Series Trekking Poles for $20.50 including tax. Each pole is 8.5 oz., so 3 oz. lighter and much cheaper than your tentative name brand choice. I wrote a short review
here.
I got an 8L dry bag for $2.63 (shipped from China) on eBay; you could buy two. The mesh bag to put a rock in came free with some California mandarin oranges. Reflective guy line (Coghlan's) was $3.99. Mini carabiner was $.17 (got a 10-pack for
$1.68).
I'm afraid your research (if you're serious about gearing up on a budget) is just beginning.