I'm working on my first build, based on a Miyata 710 frame. Here is what I have so far -

1986/87 Miyata Seven Ten frame
Shimano 105 FD-1050 front derailleur
Shimano 105 RD-1050 Rear derailleur
Shimano 105 SIS shifters
Shimano 105 crankset with 42/52 chainrings
Tange headset

Does anyone have recommendations for everything else? I know this is a very broad question but I am much more intimidated by all the buying choices as I am to put it together. I have a local bike donation-based bike shop to help build this up with proper tools and guidance.

My big concerns are wheelset, forks, and bottom bracket. I'm looking to get this middle of the road... So perhaps $200-300 wheelset, $100 forks, and whatever decent but not over-kill bottom bracket would cost.