Im not sure what kind of facillities you have for spraying a finish on, or what the climate conditions will be. However, spray on poly or spray on clear coat will work well. Just spray a little bit at a time, that way you don't have any runs. Spray a little, wait an hour, and keep doing that till you have a nice coat on there. Then knock her down with some ooo steel wool, spray a few more times and wet sand.
The easiest thing would be to just apply some true oil.
How did you sand off the previous finish, what grit?
You'll want to resand with 400, 500, and 650 before appling any new finish, or the sanding marks will shine through like christmas lights. I like polyeurethane, but everyone has differing opinions.
Glass smooth finish is not a quick task, takes a lot of patience.
You can do the same thing with regular old lowes wipe on poly, just sand with a fine grit between applications, then as its get smoother switch to steel wool. Just remember the more you put on, the longer it takes to dry. Just follow whatever you use instructions on the can eventhough it may take a while. In the the end you will be happier taking your time having done it right.