LOL. Yep. You can do it, but it’s a nightmare. When I started there were no 48 degree LBA blocks. So you gut it out.
It takes at a minimum double taper pushrods as big in diameter as you can get in there, about 15% more spring load, the lightest valves you can afford and at a minimum a Crane Pro Series lifter with an .810 wheel and a 1 inch diameter lifter with a bigger wheel is a big help.
Of course you should have all that anyway, but you can’t cut any corners with a 59 degree LBA.