Work arounds
A wheel is not critical for sailing alone on a 26  nor are sternrail seat or roller furling.Using some bungee cords a block, and line, you can rig a remote control for the tiller.  The 26 has lots of seating room in the cockpit so sternrail seat are extraneous.  They are best suited for guests.Roller furling makes using the jib easier when single handed, but you do not need to sail with the jib on the 26.  In a brisk wind and after reefing the main, the jib is the next to go as the wind picks up.When I've sailed our 26 alone, that's what I've done. Practicing when help is available allows you to smooth out your techniques.Mark