Looking good, tried out this little beast when it was for sale as a cheap alternative to finishing mine ( already vinned, wof'd, certified etc) but decided against it, glad it has gone to someone who will do it properly.
Mine is SR20 as well, best way to fix the bonnet solution is to take the sandwich plate between the engine and sump and get it machined down, this drops the engine to about 8 degrees from horizontal from about 30 degrees which is not good and gives plenty of room to close the bonnet.
My memory of the test drive was like sitting in a concrete mixer so good to see those issues being sorted.
I had trouble finding a heavy duty doughnut and tried Aussie but had no reply so if you get a solution please let me know.