for that budget you'll need to go cheap on everything in order to buy as many GPUs as possible. You could probably be around 300$ for everything but the GPU, leaving 700$ for GPU. For that price you get 3x GTX 1060 with a 24MH/s hashrate, you would be around 4-5$/day with current price.

пoмню ceбя и бeзcoнныe нoчи ))) пoглoщeниe инфы )) нaчинaл c пoкyпки фepмы нa тpи кapты, чтo бы нayчитьcя чтo кyдa и кaк, Baм тoжe peкoмeндyю , пoкyпaть кapты пo 300-400 $,кaк пo мнe этo глyпo
 

VEGA is indeed newer (and probably better in some way) but it's much more expensive and consumes more power. Don't count too much on resell value, all GPU cards currently used for mining will flood the market at some point (if they are not broken before). There are way too many cards on the market because of mining, the gamer market is not big enough to swallow the second hand cards that will be in circulation in the coming months/years. If you mine, you need to accept the risk of not being able to sell your GPU (or for a very low price).

When I first started mining :
- motherboard Asrock Pro BTC R2
- RAM Corsair 8 GB
- SSD 128GB
- PSU Corsair RM1000i
- and 6 GPU RX 480 4GB

i'd say today the situation have changed, and now I'd go for vega rig

- motherboard any B250 with 6 PCI-E slots
- CPU  -Celeron 1151 socket
- RAM any DDR4 4GB
- any cheap HDD
- PSU x 750W gold.
- and 6 GPU vega 56

Celeron
4GB DDR
EVGA 850W PSU Gold
6 EVGA 1060 FTW