7 datalogs from Omega 4 fight (One per week, so seven weeks there) + 1000 genesis = the new 290 tome weapon. It will be upgradable to 300 toward the last patch of the cycle with the three coins from the three 24 man raids of the tier.

So you can get the 290 version in 7 weeks of work for the datalogs pretty casually at one clear a week, and the Genesis shouldn't be hard too get in that time at all.