Actually, the car is in great shape - only 97,000 miles/body numbers match, perfect leather...opted for sealant to prevent dash destruction and/or rattles when removed. In order to get to the evaporator core (where my leak was) you have to take out dash - which is only held in by 3 bolts....but you have to bend it about 1-2" to get it out....anyone who knows the SL dash knows they crack (either from age/heat/or stress) and are expensive to replace (unless you want to do a cover - which I don't want to do).
Either way, the AC works great.......happy about it.
Will keep you posted on status...

Thanks