Constrained Value Estimate

Hi all, if possible can we work out an approximate valuation for SUM. It's only a guestimate, so nothing in stone. I will make a start:
1. Cash $1.6 million AUD
2. Phillips River as is $1.0 million AUD (Lithium]
3. Castor Bay as is $1.0 million AUD (Gold and Copper)
4. Stallion REE as is $3.0 million AUD (subject to MRE)
5. Stallion and nearolgy Uranium as is $12 million AUD
6. Brazil Nodium, REE and Lithium $5 million AUD
7. Total Approx. $23.6 million AUD
8. Current MC Approx. $6.5 million AUD (room to move?).

Note: We picked up the Brazilian assets on the cheap, but part of the deal involved issuing around 6 miilion shares. I am assuming they (the buyer) knew that our existing assets were also on the cheap (such as our Uranium), hence the reason for the cheap deal (coupled of course with a downturn in the REE and Lithium space).

IMHO / DYOR