First off: Preach Patience! It takes some time to get the hang of it. If he sticks with it, he will be getting very fine shaves in not too long.
I wouldn't get anything too fancy or adjustable, just a good plain razor. This way he can work on getting his angles correct and get used to shaving with a DE. The EJ89L and the Merkur 34C (AKA the Merkur HD) would both be good choices for a basic first razor.
I would also suggest buying a blade sampler. It's widely agreed upon that different blades offer a different shaving experience and it's nice to find the blade that works best for you in a particular razor.
Personally, I use a simple Potassium Alum block for my face, but there are plenty of people who use Ammonium Alum for shaving purposes. I simply like the block version (which I've found are usually made of P.A.) for my face and I prefer the more traditional pop-up style rounded deoderant crystal (which seems to usually be made of A.A.) for my deoderant needs.
You might check an Indo-Paki type grocery if you have any around you. There's one near my office that sells nice, basic alum blocks for less than two bucks.
Be aware!! You could be unleashing a beast. Your hubby might want to buy and try more razors and blades just to find the 'ultimate' shave. So many of us have walked that path. I'm happy to say I think I have found my perfect couple of combos, finally!
It can turn into a fun and practical hobby.
B&B will always be here to help along the journey.
Is this your homework, Larry?