I got a 20'x3' bed with a cotoneaster on each end and a bunch of random flowers and weeds between them. Customer wants it all gone and roses planted. step one: Rip it all out. Step twolant 4-5 rose bush. step three: add mulch maybe. No fancy machines likely just two guys doing the job. Never done this before, and willing to hear advise. Reason of this post,? How long would it take 1-2 guys to get this done?