You should be fine. I think my longest run is about 200'.
Do you have a layout that could work well with some 1/2" mainline and then shorter laterals?
Don't use 3/16 drops. Stick with 5/16 on a Shurflo. Too likely for the tree to pull in sap from them when they cool down and freeze at night if the lines aren't frozen yet. 5/16 leaves some gasses and room to avoid that. Many of us using 3/16 tubing for natural vac still use 5/16 drop lines for just this reason.
42.82N
2015 - Small operation. 25 buckets. One excited 5 year old and one 35 year old that feels 5 again.
2016 - One year older. New Homemade 2x4 Arch, Smoky Lake Pan and looking at 52 maples, 17 box elders and 2 walnut trees.
2017 - Shurflo 4008 hooked to 42 stingy silver maples and a few Norways. A couple buckets on sugars and Norways. 10 box elders.
2018 - ...a few more taps.
2019 - ...more taps on 3/16 gravity. This spiral is heading downward in a hurry.
2020 - 4x400 RO - RB20 (uh-oh!)