I would suggest that you remove any instruments from the top of your mast as it is very easy for them to get damaged when locking. I would also suggest that you make a temporary connection for your VHF aerial. You need VHF capabilities for the locks and it's a nice to have for communication with other boaters.
Checking your profile I see you are Canadian. That opens the possibility of having your mast shipped by truck from Kingston, On. to Catskill, NY. If that possibility interest you you can contact Collins Bay Marina at Welcome to Collins Bay Marina - Kingston Canada
for more information and pricing.