Well Zonie is correct. Maybe I was too optimistic on the time. There is a little bit of wood here or there you might have to remove- things like that.
On all the less expensive kits- you end up with a "blocky looking" gun. Most use a monolithic nose cap with a ramrod hole and the pipes on the under rib are screwed on (gap between ramrod and rib) rather than inlet into the under rib. The sights are horrible- put on pc sights to give a more streamline appearance. If you study photos of original pistols the barrels were often tapered which created a really elegant look.
Here's how I see it. The price isn't too bad and you get a "shooter" that in my case produced 1 1/2" to 2" groups off sandbags at 25 yards. At a later date, you can use the pistol as a practice piece- buy a better nose cap with entry pipe, an under rib and inlet pipe, things like that. I put an inlay in the wrist and checkered the grips. You can do this re-stock and end up with a pretty good looking pistol and acquire gun building skills.
One thing I'd definately do on the Deer Creek- it came with a belt hook that after a while I really didn't like. I would take a scrap of 1/8" thick metal and file it out into a side plate rather than the belt hook and carry the gun in a holster.
Well, in any event I thought I would mention it as another choice to consider.