By "wood" you mean butcher block?

No, wood plank. Maybe walnut. I want nice wood with an oil finish. What does it take to be able to do that well.
I have gotten professional quotes and know basically what the countertop would look like. This man is a friend of the my husband's family. It would have some meaning if he made it and I believe he would put great care into it, I guess I'm wondering if a hobby woodworker can acheive a professional looking "look".
That's why It might help to know what is involved to make this.
Thanks!

For me that would primarily involve a jointer and surface planer to dimension the individual sticks, a bunch of heavy clamps long enough to span the whole width during glue ups, my finely tuned hand planes to level the surface and my sliding table saw to cut the ends off square after the last glue-up. An industrial manufacturer would have oversize/automated versions of similar equipment, except their hand plane would be a wide-belt sander. Oh, and a router to shape the corners. Methods of work vary, though; if your guy is a competent woodworker you shouldn't get too hung up on the specific tools. I'd hate for you to dismiss your guy's ability to handle the job because I, whose work you haven't seen, said you need sash clamps and you didn't know that the pipe clamps he turns out to have are functionally equivalent. If he knows what he's doing he should be able to tell you whether he's equipped for the job. If he's not sure himself, and is planning to wing this project, then he should be the one asking questions.

Agree with the planer, clamps, and router---but a well tuned table saw with a glueline rip blade can substitute for the jointer. A belt sander, random orbit sander and a finish sander can be used instead of the plane---which is the traditional non powered surfacing tool.

I just did a 4 foot square glueup of 1" thick(5/4 in the vernacular) oak for a stairwell landing---used pipe clamps, planer, sanders, and table saw. A little more sanding would have made a countertop finish possible.

Thanks so much for your replys. It never hurts to have more knowledge, and wood working tools and terminology are a different language for me!
Take care-