Big thanks goes to everyone who replayed me!

For # 1 I'll try J2L Tool, J2T Rearranger (Thank you Obi1mcd!). For # 3 I'll try JJ1 MOD (Thank you Robo4900 and Violet CLM!).

Since # 2 seems impossible cool tilesets are forced into TSF version because in 1.23 you have huge limit of tiles in your tileset (I don't believe that 1020 tiles makes a good and COMPLETE tileset)... UNLESS whatever background you are planning that goes on layer 4 could easily be placed in different layer (#5) IF there would be more layers for background. Having only #6 and #7 for background with different speed than layer 4 (1.0?) doesn't seem cool (Duh, not counting layer #8 since the TEXTURED BACKGROUND IS A MUST!!!!!).

BTW: what is the limit of layer size? In TSF it showing me that is 1023 tiles x 1023 tiles. And in 1.23?