I am bidding on a job that reqiures me to transplant 5 small forsythia and install 5ft. arbs. The area is 60 ft long, and the client is looking to create a (fenceline) privacy border with the arbs. I was thinking that 24 arbs placed @ 30" spacing would be good coverage. My question is, can I plant them closer together than 30" (more like 24") or is my spacing ok. And what would you bid this job at. I can get the arbors for about $44.00 each. I was thinking around $2400.00 including the transplantings. Tell me what you thinks. Thanks guys!