Well taking out the gear shifter is not very hard, good read here on that: TRS Magazine - Shifter Bushing Replacement
You can try to add length to it but the distant you have to move the end of the shifter becomes longer, so before doing anything I would get a couple of hose clamps and a stick, like a fir strip.
Remove shift ****, may need to heat it up a bit to get it off.
Clamp stick to shifter so it has the length you want and then try just shifting it, don't forget reverse, and see how you like it, and if your knuckles will scrap the dash, lol.
If you like it, then measure length, pull out shifter and take it to a welder/machine shop they can cut and add to length, leaving stock Ranger end on it so factory shift **** will go back on, or they can add a threaded end so custom ***** can be used.
Another option would be to pull out shifter have machine shop make the current shift **** fitting into a threaded fitting then make an extension(in your length) that will screw on to the new end, that way when you sell it it can be removed if needs be