sarkis,
The WarpEngine has run my A4000D at work for about seven years. Just make sure you have good circulation in your box.
For ram, use -single sided- Sims. Most, if not all, double sided Sims are too thick to fit properly with another Sim behind them.
If you have any questions, leave me a note at Amiga.org. I have the manual and disk at work.
Best,
Bob Kennedy :hammer: