64 C10 longbed two or one piece axle with 383 stroker engine

[Hotrod1979]

HI

I have a 64 c10 longbed with a strong 383 stroker engine and th700r4 tranny.
My original drive shaft set up is a two piece drive shaft with upper mount bearing. Now that I put in the th700 transmission my front drive shaft is to long.

I have read a lot about one versus two piece drive shafts but I am still not sure what the best option will be.
My upper mount center bearing is the weaker one and I have the thinner front drive shaft. My truck is lowered 4" in the back. Will a one piece axle work without interfering with the crossmember or should I stay with my two oiece acle and just shorten the front piece.
I am a little worried about it because I have not got the heavy duty lower mounted support bearing and thicker front shaft.

Any advice from you guys? Thanks a lot

I live in the Netherlands so getting parts such as a bracket for a lower mount center bearing is very difficult....