Two 360 builds idea for heads

I have two 360’s I want to build with time, money, and motivation permitting. Have most of the parts. 1# stock stroke, ‘91 roller, speedpros H116cp .030 flat tops, scat I beam rods, cam?, airgap intake, Doug’s headers. 2# is a ‘75 360LA stoke stroke, .030 KB373 pistons, 915’s 1.88v, stock rods, airgap, patriot headers. I have several sets of 308’s and 915’s that I can rework. Or should I look at buying a set of speedmasters or these beautiful NOS 574heads. Of course budget in mind if I buy new heads it will set my projects back awhile until I can get my machine work done on the block. I am in no rush though these are spare motors. F923A701-CE7D-4EE8-8BA4-7F7B36E390D9.png2DF6689D-93F7-4920-9594-C4F889BF947A.png