It seems you would prefer to put a solid hardwood edge on your desk rather than using veneer tape. Good choice. Unless you have matching router bits to make a tongue and groove joint I would not do it. There are several ways to apply a hardwood edge that is easier, faster and strong.
Before recommending the best way to do it, it will best if you know how wide you want your front hardwood edge.
Your front edge can be 3/4" or up to 4" wide. If only 3/4", I would use a butt joint with glue only. If the edge is over 1" wide I would use a spline or a biscuit.
If you don't have time to do it right the first time, when will you have time to do it over?