Let's hold our torches under BountyH's backside
Actually, if you purchase a new MKIII, BountyH is right. The trigger is pretty bad. Of course a bone stock 1911 is nothing to crow about either.
But, since you are shooting a gun that was finalized in 1911, moving up to a gun that was finalized in 1935 can be a great addition to your collection while you modernize it at the same time.
And since you clearly are someone who appreciates a classic, then adding another classic to your collection will only bring variety.
I would look around for a Mark II. This is the HP variant that is pre MKIII (duh) and it has no firing pin safety. The firing pin safety adds to the coarseness of the MKIII trigger.
There is another very simple mod you can to to any MKII (or MKIII for that matter) that will instantly improve the trigger and that is remove the Magazine safety. This is an internal safety that is designed to prevent the firing of the gun with the magazine out.
You can read about doing this, it takes as little as five minutes on a cooperative gun, at
www.fnhipower.com. It can take longer and be very frustrating on a MKIII because they staked the pins, read up on the above web page to find the details.
If you get a MKII and remove the mag safety it will instantly be on par with any very decent 1911 with the possible exception of a little more trigger creep. The trigger reset on a MKII can be tweaked by simply swapping in the slightly stiffer MKIII trigger spring, a $6.00 mod.
Then, for another $75.00 or so you can have your smith really tune the trigger and you will have majic.
As to the clones, if you go to the above referenced board you can find opinions all day. Some of the clones are not bad, however, if you get a clone and tweak it you will have every bit as much in it as if you purchased a real Belgian HP and tweaked a little less.
I think SARCO is selling MKII slides on MKIII frames for about $275 plus shipping. These are surplus refurbs, but not a bad starting point.
If you are not in a big hurry, you can just shop and find a good MKII for under $400.00.
There are not nearly the quantity or variety of available aftermarket parts that you will find for a 1911, but some of us HP lovers just don't think they need the same attention to make a very fine shooter
The HP is, IMHO, the nicest shooting 9mm you will find. Not too large, not to small. Just right