By the way on the LGB track diameters, for years there were wrong measurements on R2 track, EVEN ON LGB LITERATURE.
R2 track is actually 1556mm diameter which is 61.26" which is darn close to 5 foot.
Dan, please check the LGB site: https://www.lgb.com/fileadmin/media/lgb/produkte/produktinformationen/LGB_Gleissystem-Info.pdf
On the LGB site, R2 is listed as 1560mm (but actual measurement by many people gives the 1556, since I was interested in the REAL dimensions as I was laying out a REAL layout.)
1560mm is 61.42" still nowhere near the numbers you quoted. I spent several days tracking this down before, and as I said it was wrong even on LGB sites some time ago. It has been mostly corrected.
So whether you accept an actual measurement of 5 foot 1-1/4 inches or current LGB advertised 5 foot 1 and 4 tenths of an inch, it is not 4’ 8" nor is it 5’ 4"…
Please see this table on my web site: https://elmassian.com/index.php/large-scale-train-main-page/track-aamp-switches/lgb-track-a-switches
Greg