honestly, this is the time u just sit back for atleast a month. we're about to see radeon rx570 for $200 and rx580 for $209 very soon.
Half of equihash is going asic. And if these fpga guys kill cryptonight, eth will be flooded even without POS happening.
If FPGA turns out to be just too cumbersome to use, i'd consider buying some rx570 at $200. but in general, the risk dont outweigh the reward right now.