No way would I buy a budget spotter. It seems like anything under 1,000 isn't worth it. Go too of the line or keep saving. A few cheaper things that you didn't mention is
Good game bags. I have used caribou gear for 5 plus years and really happy with them.
A nice light weight knive. I love my aragli. Worth every penny.
Puffy. Eddie Bauer has really decent coats. Love my first ascent. I buy earth tone colors, wear it for a year or two then switch to use as hunting coat.
Tent. I like Rei or Big Agnes. Both can be found used for very cheap. I found a Rei 10x10 for $100 in the gear garage used once, and a msr bubba with a broken like for $5. I emailed msr and they sent me a free pole.
Head lamp. Can never go wrong here
Last trekking poles. I don't use them a ton but always carry them. With a 100 lb pack after shooting something they are a game changer.