Be wary of going by someone saying "I take that amount all the time and am fine" - everyone is different; the fact is, that is a higher dose than is recommended in one go - not drastically higher so as a once off it is
probably okay but we can't promise it and don't make a habit of it!! If you can do a CWE it will certainly be safer, there is no doubt about it, but as Doug said 2500mg isn't what you would call overdose level.
I use two layers of kitchen roll (paper towel? The stuff you have in kitchens for mopping up spillages or wiping greasy fingers) in a makeshift funnel (The top cut off a 2L pop bottle) - dampen the kitchen roll slightly so the liquid passes through it easily and use a double layer to make sure it filters it enough. Don't be tempted to squeeze or it will split! If you are CWEing a lot of pills you can roughly filter them through some loosly woven fabric to remove a lot of the solids then filter properly through kitchen roll/coffee filters but with 5 pills this should not be a problem. Some people use fabric as a filter - this makes me nervous as some is fine but some is not, but others swear by it - if you go for this, choose a closely-woven fabric and ideally a double layer. If the solution is milky or has particles in it, re-filter. Coffee filters are the best, really.
Here is the
CWE megathread 
Erowid's version is the most throrough but I don't think you need to use hot water to dissole the tablets then ice personally - I just use tap water in winter, refridgerated water in summer, and personally I crush the pills by hitting them while in their blister pack then using a hand blender, or you can crush the pills beforehand and stir until they dissolve. Remember a small amount of APAP can dissolve so use the minimum amount possible to dissolve the pills eithout it being all sludgy - but again, with only 200mg APAP this isn't a big concern - it becomes moreso when you start CWEing 50 8/00 codeine/APAP pills, haha..