Ive got a few things for you to keep in mind,
Most feul pumps and feul regulaters and feul filter take 3/8 threaded fittings. The inside diamator of these fittings is the same ID as dash -8,
wich is 1/2 OD, You will find that dash -8 is more than big enough, Definatly big enough to flow anything a holly blue can through at it,
My point is all you will end up doing if you go dash 10 is downsizeing and up sizing before and after fuel pump - fuel filter and regulator. Also alot of fuel filters will only fow a certin max HP worth of feul, So you can end up spending alot of money on hose and fittings that you just dont need to.
Dash -8 , 1/2 od pipe is vey big anyway.
If you want to get very very cheap braded line and speedflow fittings go to,
Summit racing, there own brand stuff is so cheap and good quality
Summit SUM-230820 - Summit Stainless Steel Hose - summitracing.com
AN to Pipe Thread Fittings - summitracing.com
If you want to know more about ording ect , let me know.