Classic: LTE 286 ram expansion 4.6MB or 8.6MB?

Hi all! I found couple of LTE 286 notebooks all stuffed with addons in both but with blown HD's. (Sheesh, Conner HD's are like that!) Plan to replace the nonstandard 3.5" for standard 2.5" IDE drives (Been done that before) but when I peered into ram module can shield holes I see 8 spots more to put 1Mx4bit chips on to give extra 4MB for 8MB instead of piddling 4MB module. Have anyone ever seen LTE 286 with 8.6MB at all? That reminds me of little known LTE 386s/20 that can handle 16MB instead of 10 using pair of 8MB cards plus latest bios. These modules are made by Amkly Systems Inc., 301-128912 Rev A. (C) 1990. (!!) Is there a outfit that still selling those 386SX compatiable in a PLCC 68pin package? That was documented in one of T1600 owner upgrade website somewhere few years ago. BTW, this notebook was made in late '89 early '90's. Wizard