You can road the copper before the border pops, so if you had four workers (!) and did a bit of overflow magic you could get a spear eot51. But that's probably unnecessary... Anyway with those timings and the ability to build Quetchas for MP I wouldn't bother with archery until you want horse archers or longbows. There are economic techs out there for the teching!
Completed: RB Demogame - Gillette, PBEM46, Pitboss 13, Pitboss 18, Pitboss 30, Pitboss 31, Pitboss 38, Pitboss 42, Pitboss 46, Pitboss 52 (Pindicator's game), Pitboss 57
In progress: Rimworld
In progress: Rimworld