heres the breakdown .. sounds like you want a machine that can do it all, which is possible, but it really comes up to your budget. anything under 40" shouldn't be more than 5,000 .. 61" and up you're looking at anywhere from 7,000 up.
now it sounds like you'll be doing alot of encapsulation if the copycenter is outsourcing to you. which means you'll definitly want something with a heated roller and 2 supply shafts at least. most likely you wont be doing much hot laming thats more than 5mil/5mil so all you need is a single heated roller.
I think your best bet is a seal ultra 44. which is in the 5-6,000 range. its a great starter laminator capable of hot, cold, encapsulation. It's not a very high production machine. but is sufficient for what you are looking for.
Basically laminat film varies between application, and price. are cheaper...
there are so many combinations with overlams, backers, mounting adhesive. it gets pretty complicated.
here's the breakdown.
thermal/lowtemp
Heated roller Needed!
best for Paper based media for encapsulation
.5-.8 cents per sq ft.
pressure sensitive/cold
Best for Vinyls / mounting to boards
encapsulation is possible, but expensive.
pvc films .20 cents + per sq ft.
cast or vinyl overlams go up to the dolar range per sq. ft.
basically a cold laminoator can do everything. but at a cost wether it be $$$ or durability. Heat just makes it cheaper.
I started out with a Seal ultra 62. wichi i paid 8k for. added with hours and hours of patience and practice. I was able to run roll to roll with it with very few problems.
I recently aquired a AGL 64i which came out to 28k due to my production needs. Finishing is definitly a profitable source of income. this puppy has all the bells and whistles.
I still have my seal ultra 62 which i use to mounting signs or doing small jobs. I do tons of facemount/acrylic signs for a sports club that has 120 locations nationally, and the 62ultra is perfect for that. although i might note that it takes alot of practice and patience.