there is little you will get out of the head i think. a general port match and deburr is as good as it gets. from what i have seen of the head design so far they have got it as close to perfect as you can with in the limits the casting gives.
if the head/engine is good then all you need to do is look at thinner head gaskets. if the rev 3 is the same the standard gasket is 1.2mm and you can get 1mm, 0.8mm and 0.6mm gaskets. this should be enough to change the compresion with in useable limits.
standard tools need really. i havent used any thing special as of yet and i only have the sump and crank left to take out.
components to change. water pump, oil pump, cam belt, tensioner and idler, get an engine gasket kit and that will give you all the seals and gaskets you need to change.
pistons should be ok so shouldnt need changing. fensport should be a good place to start for parts and you will get discount as your doing the TSS. if not the good old fleabay for parts.
apart from that its all straigtht forward. rev2 and rev3 are very similar so RP's or my threads should help out.
oh and try and get hold of one of these but for the rev3 3sge http://www.ebay.co.uk/itm/Toyota-Carina-Celica-Camry-Engine-Repair-Manual-/190591090092?pt=UK_CarParts_Vehicles_Manuals_Litterature_ET&hash=item2c601d3dac they come up for sale every now and then and have every thing you will ever need in there. its just nice having a hard copy you can just flick through in the workshop.
andy