50 - 70 metres drilling per day for Diamond Drilling is correct btw, assuming drilling only in daylight hours (so can be shorter if set up with spotlights to drill longer). Get more drill metres per day if it was RC drilling, but DD is more accurate btw.
For how metres in a day you can drill refer
http://detcrc.com.au/2014/breakthrough-technology-will-cut-mineral-exploration-drilling-costs-by-85/and
https://goldexplorers.wordpress.com/2010/11/27/drill-speed-and-drill-types/Drilling meters per day ultimately boils down to the drill head and whether you can drill for 24 hours or not. Depending on the head you probably could drill 5 metres to 7 metres of core per hour. Assuming 12 hours of drilling per day in natural light, 5 metres per hour, and a depth of 250 metres, will take you 4 - 5 days per drill.
You would be probably sending each core or every 2 cores to the lab, and depending on how busy the labs are it can take 4 - 6 weeks before assays come back. That is I wouldn't be expecting them to wait for all 5 drills before sending to the lab.
If using one drill rig, probably add a day or two to move and set up the drill in a new location to drill. So 5 holes to 250 metres each and adding 8 days to move the rigs from site 1, would theoretically take about 35 days to complete IMO. Add 4 weeks to 6 weeks for lab results, albeit the results would be staged. So IMO, and hope I am wrong, I wouldn't be expecting initial results until at least mid October, with all results in by mid November, assuming drilling commenced around10 September. Taking a conservative view here, but ultimately it does depend on the quickness of the labs.
As a final point, whilst the labs will give the results, I wouldn't be surprised if the geologists onsite haven't run hand held instruments (XRF) over the cores themselves btw, noting however from a ASX/JORC reporting perspective what counts are the lab results as XRF instruments (whilst providing ballpark measures) are not precise -
https://www.olympus-ims.com/en/portable-xrf-for-gold-au-and-au-pathfinders-for-mineral-exploration-and-ore-body-vectoring-1/:
All IMO
(20min delay)