I mostly agree with square dancers. Get on I-20 at Terrell, go around the south side of Dallas. But go all the way to I-35W in Ft Worth, then north to US 287. The last time I was on Loop I-820 around the north east side of Ft Worth (a few months ago) there was major construction there.
There is also major construction on 183 just east of Ft Worth before you get to I-35W.
And there is major construction around the area of 114 in Grapevine.
Taking I-20 to I-35W is a better choice than taking I-30 to I-35W.
Saturday morning should not be a problem traffic wise.