motor options

I just spun a rod bearing on my 91 integra gs. (B18a1). I have a '90 RS parts car with a burnt valve. Money is definitely an object. I am getting a '94 b18b1 but I'd really rather put that in my 94 del sol. Is there an advantage the b1 has over the a1 or is it just about OBD's? Should I put the 2 b18a1's together with some new internals? Or build an LS/VTEC? or a CR/VTEC? What heads do I use for these builds? So many questions! So young, so angry! I'd appreciate any advice.

b18b 94 is obd1 and maybe 10hp more..
but other then that nothing much..

goin for lsvtec is good for power but u dont really know how long it will last..
there is always problem with that..

if all parts work.. u should make one motor with the 2 b18 u have..
since money is a problem.. why waste it..