After reading the excellent article noted by SandyEggoJake, I will probaby go with the Archer HO set as the Micromark set is noted at a bit oversized for HO. Although the Micromark set is vastly more economical, I have only used a small fraction of my Archer N scale set in the several years I have had it. Here is the article link:
https://groups.io/g/Hindsight2020/files/Using%20Archer,%20MicroMark%20and%20Harvested%20Rivets%20For%20Patterns%20and%20ModelsYou may need to join the group to get access.
If you have not already joined the Hindsight 20/20 group, I highly recommend it:
https://groups.io/g/Hindsight2020They have had a series of day-long programs with excellent prototype modeling presentations, basically replacement for missing all the RPM meets this past year. It is mostly HO (maybe all HO?) but they are always looking for new presentation. I am hoping these will continue even after we get back to normal since not all of us regularly travel to the Cocoa Beach and other various RPM meets.