How necessary is a tee

I picked up a VC Resolute 1 in good shape yesterday. After a full cleanup and some new gaskets I’ll be installing it in an existing old brick fireplace. I’m running a chimney liner down to it and basically I would prefer spatially to have the flue come straight up out of the stove and enter the liner directly above, as opposed to exiting the rear of the stove into a tee, which I would have to move the stove to access anyway. This would maximize hearth space in front of the stove, which would be nice. The flue collar on the stove can be configured for either orientation. I figure I can just clean the flue from the open door of the stove in this case. Is this dumb? Im an HVAC professional but I’ve neither worked on nor owned a wood stove before now.