Cant you do a connection string setup? The company I work for has 2 sites that are connected to 1 DB. just by making the same connection information in there db connection file and they did it without the add-on feature.
But I 100% suggest that you find a host with all those features because you will need them so when the company grows. Liquid web is the best since they have 24/7 phone, chat and email support plus they have there own data centers! They host many popular companies.
Take care and good luck!