Budget build. But I am trying to sell or trade my 699 pan to get at least seven quart for mine
The phrase if it ain't broke don't fix it comes to mind here.
You are doing a basic stock spec rebuild here with some minor bolt on improvements. A couple of DIY mods to that stock pan to keep the oil in the sump is all it needs.
As for the HV pump, not likely needed. Here's a test. Use the original pump (after inspection) and make note of your hot oil pressure. It should be in the 55-65 psi range throttled up which is lots for an engine that won't see over 6000 RPM. Pull the relief spring out and shim it with a flat washer. If your hot oil pressure is now higher, the regular volume pump is able to supply more oil than you need.
If it isn't, then the cam bearings are likely worn out. On a low buck engine the easy way to crutch this up is a HV pump.
