Splice coolant hose?

In the process of changing my OFHG, the flange that connects the front coolant hose to the engine broke. In order to replace this, I have to replace the entire hose which connects to the t-stat, and it seems as tho Id have to remove the t-stat to do this which is a pain. So my question is, would it be safe to cut and splice the old and new hoses together with a radiator hose repair kit? (Hose coupling and clamps) This would allow me to use the new upper flange but not have to replace the lower portion of the hose. Or are these kits not suppose to be a long term solution? Any input is appreciated.