Add on cruise control-98 Dakota

I'm considering putting an aftermarket cruise control on a 98 Dodge Dakota with a 3.9L/V6.  I've done a little mechanicing in the past but nothing major.  Is this something I can likely do myself?  The options are, do it myself for about 100 bucks or spend 315 to have it done by someone else.  Let me know if this is something I should be able to do pretty easily.  I've got a great mechanic across the street and a father-in-law that has done a lot of auto repair in the past so my resource are pretty good.  Also, let me know what brands you recommend and where I can get them.  Thanks, Greg ThomasGT, newcomer to auto repair but willing to learn

Just don't go with the rostra 250-1176 if they still make them.  They almost always fail and surge with time.  I have changed too many of these.