Nice setup... and IMO, nice drums.
From what I see in the pictures, these drums were of the 70s Pearl "W" series, which means a nine-ply shell with NO fiberglass sprayed on the interior (simple gray painted interior). This is probably NOT what you want to hear, because that was Pearl's "entry" level drums, as opposed to their FG and W/FG lines. During the 70s when Pearl entered into direct competition with the American "big boys," their prices on their top two lines were about the same as the big boys; however their W series sets were less expensive.
I'm saying that, based upon these observations:
1) 8 lugs per side (16 total) on the 22" BD, as well as the style of claws and T's. Their FG & W/FG lines had 10 per side (20 total) and a more streamlined type of claws and T's.
2) The type of double tom mount used was standard issue on the W-5 setup.
3) The same with the FT leg brackets.
As for having de-wrapped them, it simply doesn't hurt the value on these as much as it would have an American made set of the same era. Again, something you won't want to hear but a cold hard fact: resale value on these is NOT anywhere near a comparable American made set.
Honestly, I rarely deal with cymbals and hardware; I usually just sell the shell packs. And even in good condition, I don't think I could get more than $350 to $400 for the drums themselves. So, if you're looking to trade them, you need to figure on kicking in some cash, too.
Like I said up top, I think you've got good drums and a nice setup. So, unless you're just wanting another set (which is fine), keep them!
Just my :2Cents:,
Bill