Schematic diagram:
 

http://www.schematics.com/project/ek1a-lz1dpn-46277/

5W PA - Part from Farhan's JBOT amplifier:

 

With this LPF and PA, now transceiver work well in transmit mode on 3.5 , 5, 7, 10 and 14 MHz for other band You should to recalculate LPF ( http://www.calculatoredge.com/electronics/ch pi low pass.htm ).

ALL SCHEMATICS AND SOURCES:

https://github.com/LZ1DPN/CWTRX0to30MHzv2/

Components price:  ~50$ from ebay

73 & MNI DX's!
DE LZ1DPN

http://lz1dpn.blogspot.bg/2016/11/modified-ek1a-all-bands-cw-transceiver.html