Do you have a chimney pipe already installed? People talk about the fantastic deals they got on a cheap stove till they find out the price of installing them to code with proper chimney pipe. That might run 2-3X the cost of the stove.
Are you going to do the install yourself? Are you insured? Will the insurance company OK a stove install, and would they require an inspector?
I've already installed two chimney systems and I can tell you it's for sure a DIYer job, but it takes about two days for two adults to install a proper chimney. Here's a link to a great company that I bought my stove pipe and chimney pipe from. They will have everything you need to do a proper and safe install.
https://www.northlineexpress.com/