It should not be difficult to get into first if the whole set up is adjusted properly in my opinion.
There are some excellent articles prepared by others on this site on the process of adjustment of the shift linkage to get both the shift lever and the gearbox properly centered and aligned. If a mechanic has not come across one of these rear gearbox linkages before they may have struggled to get it correct without some of the wisdom contained in the advice on this site.
Further the 3d printable centering tool also published here was a big help to me in getting the gearshift at rest alignment correct. There is a point where you may want to get it home and do some adjustments yourself.
The help and assistance accessible through this site is second to none. Be sure if you have any issues there is a depth of past knowledge accessible and many ready to assist.