I ran a FWD head on my rwd Sr engine. was easy..
Just got me a 60-1 crank trigger disk and a magnetic pickup. cost like $120 for both..
Then when you order your ECU just specify that your running 60-1 setup.. DONE....
As for the Soliniods on the head.. there are a few solutions.. all of which you'll be able to find on SR20.com and lots of other usefull information..
Plus if you built it using an SR20 bottom end you can use the pistons out of the VE engine for mucho compressions..