Hi Lisa! Saw your sign-up message. WELCOME to TrikeTalk.
As to your question... please be very SURE that trike is the one you want. Already... you have an issue with it - lacking reverse - and so far not being able to resolve the issue.
I personally would not purchase a trike without everything major I needed already on the bike. Having to hunt down parts and techs who can do the work is a MAJOR pain.
Just throwing this out there for consideration. You are new to trikes and the first experience should be a good one.
Good luck with your quest.