Brewer's swap vs Sourcing Parts

I've done 7 conversions now. I always piece them together myself. Mostly so it isn't such a big
hit to the bank account all at once and you have some more options that you don't get when buying a OEM style kit. But this takes time and research to know what to look for.
For example aftermarket or OEM bell housing. I always buy a used Lakewood, no more than 2-250.00. I can weld the "Z" pivots where they need to be since they are made of steel. This can be a big help sometimes.
Some cars I like to use an aluminum flywheel some oem iron some certified steel.
Many different clutch's out there. I like the long (ford) style pressure plate's.
Many linkage parts I home build just so they are beefed up a bit. You also get to choose between the18 or 23 spline. Iron or aluminum case. There are also some shifter choices. "H" pattern or a inline racing type.
I enjoy tinkering with these parts to fine tune them to each builds needs. Gives me something to work on while waiting for funds for other larger project areas like body and paint.
I have found 18 spline transmissions as low as 400. and paid as much as 1500. for a 18 spline passion aluminum trans. 23 splines are in the 300. price range around here.
It would be easier and quicker to go with the kit if that would work for you.
I don't believe I have ever gone over 3500. converting any one car usually under
1500. for the 23 splines.
The reason I hit the 3500. mark on the one is the 18 spline passion box and console shifter option wasn't cheap at all.