I suggest that if you not prepared to test and compare antennas with this new project, then build it just to get it tuned the best you can and don't worry about it working the best it can. Frankly, I don't think you'll be able to tell if it works better or not unless you do some comparisons, because I don't think you've worked much at your new location. I also doubt most of us will ever see, what Bob experienced with his hybrid modified Vector and it looks like it might have been a one time deal maybe. I've see such strange things happen at times while I was watching my antennas respond to different signals, but I consider most of that stuff aberrant and I use greater signal sampling to average such events out of the mix I get and report.
Just making a few comments off the top of my head.
Be sure and let me know if I can help with any dimensions that I might have here.
Good luck, and keep us posted.