Hello ! I have create an idea about Multi Year quotes that correspond to your needs. This is a different idea from kvlschaefer. Here is the link, please go and vote so Hubspot can change the way quotes are done 
: Multiyear Quote
Hello ! I have create an idea about Multi Year quotes that correspond to your needs. This is a different idea from kvlschaefer. Here is the link, please go and vote so Hubspot can change the way quotes are done : Multiyear Quote